A strong choice in power steering pump hardware matches the part you need—such as a pulley nut, keyway set, or mounting bracket—to your pump and engine setup. This roundup suits GM restoration projects and small-block Chevy builds, with products ranging from a single OEM-style nut to bracket kits for different water-pump and pulley arrangements. The Racing Power Nut & Key Way Set leads for buyers seeking two kinds of pulley-retention hardware in one product.
Speedway Motors GM Pulley Nut is a focused restoration-style alternative, while several other options are mounting brackets rather than fastener replacements. Check pump style, water-pump configuration, pulley grooves, and keyway details before choosing: compatibility descriptions differ, and the listings do not establish universal fit across all GM applications.
The Racing Power Nut & Key Way Set is the best overall pick for buyers seeking direct power steering pump hardware: its listing identifies both a GM pump nut and a keyway set, with a standard AMS 404 keyway. If you need a restoration-style replacement nut instead, the Speedway Motors GM Pulley Nut is described as OEM-style zinc-plated steel and fits most GM Saginaw and Chevy pumps. For mounting rather than pulley retention, choose a bracket kit that matches your engine and water-pump setup.
Our Top Picks
Best OverallRacing Power Nut & Key Way Set
The listing pairs a GM power steering pump nut with a standard AMS 404 keyway set, making it the most directly applicable multi-part hardware option.
View on Amazon
Best Restoration NutIts OEM-style reproduction nut is zinc-plated steel and is listed for most GM Saginaw and Chevy power steering pumps.
View on Amazon
Best Adjustable MountThis kit includes mounting hardware and a slotted arm for belt tension adjustment, with stated fitment for long-water-pump SBC setups and specified pump styles.
View on Amazon- Broad Water-Pump Fit Adorish SBC Mounting Bracket
Compare power steering pump hardware options
| # | Product | Weight | Package Dimensions | Material | Buy |
|---|---|---|---|---|---|
| 1 | 1. Racing Power Nut & Key Way SetBest Overall | 2 lb | — | — | View on Amazon |
| 2 | 2. Speedway Motors GM Pulley NutBest Restoration Nut | 16 oz | — | Zinc | View on Amazon |
| 3 | 3. Moker SBC Bracket KitBest Adjustable Mount | 1.08 lb | 7.99 x 4.45 x 1.26 in | — | View on Amazon |
| 4 |  4. Adorish SBC Mounting BracketBroad Water-Pump Fit | 1.78 lb | 8.74 x 4.41 x 0.67 in | — | View on Amazon |
| 5 |  5. daola888 SBC BracketSteel SBC replacement bracket | 1.79 lb | 8.7 x 4.09 x 1.26 in | aluminum, chrome, steel | View on Amazon |
| 6 |  6. Woosphy GM Bracket Pulley KitKeyway double-groove setups | — | — | Aluminum | View on Amazon |
Detailed Reviews: Best Power Steering Pump Hardware
#1 · Best Overall
1. Racing Power Nut & Key Way Set
- Weight: 2 lb
Best for: GM nut and keyway set.
Why it ranks #1: The listing pairs a GM power steering pump nut with a standard AMS 404 keyway set, making it the most directly applicable multi-part hardware option.
A combined power-steering pump nut and keyway set handles two named hardware pieces in one Racing Power package. The title specifies a GM application and a standard AMS 404 keyway, making it a focused option for buyers seeking those components rather than a bracket or pump assembly.
The title identifies both a GM power-steering pump nut and a keyway, so the set is aimed at replacing those specific hardware items together. Its standard AMS 404 keyway designation gives buyers a concrete specification to compare with their existing setup. Racing Power describes the product as high quality and highly reliable, but the supplied details do not identify engine fitment or additional components; the listing is therefore most useful when the needed keyway standard is already known.
- Includes a power-steering pump nut and keyway set
- Specifies a standard AMS 404 keyway
- Identifies the application as GM power-steering hardware
- Targets hardware replacement rather than a pump bracket
- The listing does not specify engine fitment beyond identifying GM pump hardware.
Skip it if you need a stated engine-specific fit; Speedway Motors’ 92612760 pulley nut lists compatibility with most GM Saginaw and Chevy pumps.
This suits a buyer replacing a GM pump nut and keyway who can match the stated standard AMS 404 specification. The provided fitment information is limited, so it is a less informative choice when engine-specific compatibility details are essential.
Full product details
| Brand | Racing Power |
|---|---|
| Item Weight | 2 pounds |
| Item model number | R3913H |
| Manufacturer | Racing Power |
| Part Number | R3913H |
| Model | JEGS |
| Dimensions | 5.9 x 3.9 x 0.6 inches |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Racing Power R3913H Gm Power Steering Pump Nut & Key Way Set (Standard Ams 404 Key Way)
View on Amazon#2 · Best Restoration Nut
2. Speedway Motors GM Pulley Nut
- Weight: 16 oz
- Material: Zinc
Best for: GM restoration hardware.
Why it ranks #2: Its OEM-style reproduction nut is zinc-plated steel and is listed for most GM Saginaw and Chevy power steering pumps.
An OEM-style reproduction pulley nut gives a GM power-steering pump a factory-correct finishing detail while retaining its pulley. Zinc-plated steel and compatibility with most GM Saginaw and Chevy pumps make it a focused replacement for restorers matching original-style hardware rather than changing the pump setup.
The reproduction follows the original GM design, helping an engine-bay restoration keep its period-correct appearance at the pulley. Zinc-plated steel provides the stated durable construction and pulley retention, while the listed fitment covers most GM power-steering pumps, including common Saginaw and Chevy applications. That broad—but not universal—GM scope can suit a restoration using those pumps; it is a single nut, so it addresses hardware replacement rather than a bracket or complete pump installation.
- OEM-style reproduction matches original GM design
- Zinc-plated steel construction
- Fits most GM power-steering pumps
- Compatible with common Saginaw and Chevy applications
- Fitment is stated for most GM pumps, not every power-steering pump.
Skip it if you need a bracket, pulley, or complete pump assembly; this listing is for a replacement pulley nut only.
This suits a GM restoration buyer replacing pulley-retaining hardware while preserving an original-style engine-bay appearance. Its stated scope is most GM Saginaw and Chevy pumps, so it is not the right choice for a non-GM setup or a broader hardware refresh.
Full product details
| Brand | Speedway Motors |
|---|---|
| Color | Silver |
| Included Components | Includes product as described |
| Inside Thread Size | #18 |
| Item Dimensions | 3 x 2 x 1 inches |
| Item Weight | 16 ounces |
| Manufacturer | Speedway Motors |
| Material | Zinc |
| Model | 92612760 |
| Screw Head Style | Hex |
| Size Name | 9/16"-1 inch |
| Thread Style | Others |
| Warranty Description | See Return Policy |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Reproduction GM Power Steering Pump Pulley Nut, OEM-Style Zinc Plated Hardware for Most GM Saginaw and Chevy Power Steering Pumps, Universal Fit Restoration Replacement
View on Amazon#3 · Best Adjustable Mount
3. Moker SBC Bracket Kit
- Weight: 1.08 lb
- Package Dimensions: 7.99 x 4.45 x 1.26 in
Best for: Long-water-pump SBC builds.
Why it ranks #3: This kit includes mounting hardware and a slotted arm for belt tension adjustment, with stated fitment for long-water-pump SBC setups and specified pump styles.
A slotted tension arm lets this Moker bracket adjust belt tension while mounting an SBC power-steering pump low on the driver side. That combination supports a low-mount V-belt setup with room to set tension at the bracket, for builds using a long water pump and the specified pump styles.
The bracket is specified for SBC engines with a long water pump and 19319932- or 19319961-style power-steering pumps, narrowing the fit to a defined combination. Its V-belt compatibility also includes single- or dual-rib pulleys, giving those setups some pulley flexibility. Billet aluminum keeps the bracket material distinct from a generic steel mount, while the slotted arm supports belt-tension adjustment after mounting. The kit includes the pump bracket and mounting hardware.
- Low driver-side pump mounting position
- Slotted arm allows belt-tension adjustment
- Compatible with V-belt and one- or two-rib pulleys
- Billet aluminum bracket includes mounting hardware
- Specified for long-water-pump SBC setups, not short-water-pump applications.
Skip it if you run a short water pump; Adorish’s Fits SWP LWP Saginaw GM SB Ch-evy 350 bracket lists both short- and long-water-pump compatibility.
Choose this for an SBC build with a long water pump that needs a low driver-side pump mount and adjustable belt tension. Its stated pump compatibility is limited to the listed styles, so check that setup before choosing it.
Full product details
| Brand | Moker |
|---|---|
| Item Weight | 1.08 pounds |
| Item model number | 551522 |
| Manufacturer | Moker |
| Part Number | 551522 |
| Model | 551522 |
| Package Dimensions | 7.99 x 4.45 x 1.26 inches |
Listed on Amazon as: SBC Power Steering Pump Bracket Kit – Adjustable V-Belt Slotted 305 327 383 5.0L 5.7L V8 LWP Low Mount Power Steering Pump Bracket Compatible with Chevy 350 Small Block Long Water Pump
View on Amazon#4 · Broad Water-Pump Fit
4. Adorish SBC Mounting Bracket
- Weight: 1.78 lb
- Package Dimensions: 8.74 x 4.41 x 0.67 in
Best for: Flexible SBC bracket mounting.
Why it ranks #4: The listing states compatibility with small-block Chevy engines using either long or short water pumps and single- or double-groove pulleys.
Mounting either on top of or across the pump gives the Adorish bracket two installation orientations for an SBC power-steering setup. Its stated compatibility with long or short water pumps and single- or double-groove pulleys makes it useful when the build calls for flexibility across those configurations.
The bracket lists compatibility with small-block Chevy engines and both long- and short-water-pump arrangements, giving builders options across different engine layouts. Its top-or-across mounting orientation provides another way to place the bracket around the pump, while single- or double-groove pulley support accommodates either listed belt arrangement. The supplied vehicle examples include Camaro, Nova, GM trucks, Chevelle, Malibu, El Camino, Monte Carlo, Impala, Caprice, and Bel Air applications, helping identify its intended classic GM range.
- Compatible with long- and short-water-pump setups
- Can mount on top of or across the pump
- Works with single- or double-groove pulleys
- Lists a broad range of classic GM vehicle applications
- The supplied listing does not specify included mounting hardware.
Skip it if you need a bracket explicitly supplied with mounting hardware; Moker’s 551522 listing includes the bracket and hardware for long-water-pump SBC setups.
This bracket suits a classic GM small-block builder who values alternative mounting orientation and needs either water-pump configuration. Its stated pulley support is single or double groove; verify the intended engine and installation arrangement against the listed applications.
Full product details
| Brand | Adorish |
|---|---|
| Item Weight | 1.78 pounds |
| Manufacturer | Adorish |
| Part Number | SPZL000085 |
| Model | Fits SWP LWP Saginaw GM SB Ch-evy 350 |
| Package Dimensions | 8.74 x 4.41 x 0.67 inches |
Listed on Amazon as: Power Steering Pump Mounting Bracket LWP SWP Compatible with SB SBC Ch-evy engines 262 265 283 302 305 307 327 350 400 Black
View on Amazon#5
5. daola888 SBC Bracket
- Weight: 1.79 lb
- Package Dimensions: 8.7 x 4.09 x 1.26 in
- Material: aluminum, chrome, steel
Best for: Steel SBC replacement bracket.
Why it ranks #5: Its steel bracket is listed for several SBC engine sizes and both short- and long-water-pump configurations, though the listing gives limited adjustment detail.
Steel construction is the defining feature of this daola888 power-steering pump bracket, giving SBC builders a strength-focused replacement mount. It is listed for both short- and long-water-pump configurations and a range of small-block Chevy engines, supporting projects that need bracket compatibility across those layouts.
The bracket is specified for Chevy/GM small-block engines including 350, 305, 327, and 400, among other listed sizes, and it accommodates both short and long water pumps. That coverage can help when choosing a replacement mount for different SBC layouts. Its stated steel construction emphasizes strength and durability, while the listed common-vehicle examples include Camaro, Nova, GM trucks, Chevelle, Malibu, El Camino, Monte Carlo, Impala, Caprice, and Bel Air. The package lists the bracket as the included component.
- Steel construction is specified for strength and durability
- Compatible with short- and long-water-pump setups
- Fits a range of listed Chevy/GM SBC engines
- Lists common classic GM vehicle applications
- Only the power-steering pump mounting bracket is listed as included.
Skip it if you need the bracket and its mounting hardware in one kit; Moker’s 551522 listing explicitly includes mounting hardware for long-water-pump SBC setups.
This is a fit for a Chevy/GM small-block project needing a replacement bracket that spans short- and long-water-pump layouts. The included component is listed as the bracket, so account for any separate mounting hardware your installation requires.
Full product details
| Brand | daola888 |
|---|---|
| Color | Silver |
| Included Components | Power Steering Pump Mounting Bracket |
| Item Weight | 1.79 pounds |
| Item model number | DL-241724 |
| Manufacturer | daola888 |
| Material | aluminum, chrome, steel |
| Package Dimensions | 8.7 x 4.09 x 1.26 inches |
| Warranty Description | one month |
Listed on Amazon as: Power Steering Pump Mounting Bracket, LWP SWP, Compatible with Chevy/GM SB SBC 350 262 265 283 302 305 307 327 400 (Silver).short water pump/Long water pump.
View on Amazon#6
6. Woosphy GM Bracket Pulley Kit
- Material: Aluminum
Best for: Keyway double-groove setups.
Why it ranks #6: This bracket-and-pulley kit specifies a double-groove V-belt pulley and 5/8-inch keyway bore, but its stated engine and pump fitment is more specific.
A double-groove V-belt pulley is included with this Woosphy pump bracket kit, giving compatible GM keyway pump setups a bracket-and-pulley combination. The listing specifies a 5/8-inch keyway bore and 5 3/4-inch outside diameter, useful reference dimensions when matching the pulley to the existing configuration.
The kit is listed for Chevy small-block engines from 265 through 400, including 283, 305, 327, 350, and 383, and for GM Chevy keyway power-steering units. Its double-groove V-belt pulley has a 5/8-inch keyway bore and 5 3/4-inch outside diameter, giving buyers concrete dimensions to compare with the pump and belt arrangement. The product also lists replacement references 3913C, 4312C, and 9609x, helping identify the intended pulley style.
- Includes a power-steering pump bracket and pulley kit
- Double-groove V-belt pulley
- 5/8-inch keyway bore and 5 3/4-inch outside diameter specified
- Lists Chevy small-block and GM keyway pump compatibility
- The kit’s pulley is specified for keyway attachment, not other attachment styles.
Skip it if you use a non-keyway pump or need a single-groove pulley; the listed kit specifies keyway attachment and two grooves.
This fits a Chevy small-block builder using a GM keyway pump and a double-groove V-belt arrangement. Compare the stated bore and pulley diameter with the intended setup; its specified attachment and groove count limit it to that configuration.
Full product details
| Brand | Woosphy |
|---|---|
| Color | Silver |
| Compatible with Vehicle Type | Car, Truck, Van |
| Included Components | Power Steering Pump Bracket Kit |
| Manufacturer | Woosphy |
| Part Number | Power Steering Pump Bracket Kit |
| Material | Aluminum |
| Model Number | Power Steering Pump Bracket Kit |
Listed on Amazon as: Power Steering Pump Bracket w/Double Groove Pulley Kit Replacement for GM
View on AmazonAvoid pulley and bracket compatibility traps
The main compatibility trap is treating engine family alone as proof that a bracket or pulley will fit. The Moker SBC Bracket Kit specifies a long water pump and 19319932 or 19319961 style pump, while the Adorish SBC Mounting Bracket states long- or short-water-pump compatibility. The Woosphy GM Bracket Pulley Kit instead calls out a keyway attachment, a 5/8-inch keyway bore, and a double-groove V-belt pulley.
Those are different fitment clues, not interchangeable specifications. Before ordering, identify the pump style, water-pump length, pulley groove arrangement, and attachment type on your existing setup.
The product descriptions do not provide a common measurement drawing or establish that these parts interchange. If any of those details are uncertain, compare the actual pump and bracket geometry with the listing or confirm fitment with the seller before assembly.
Separate pulley retention from pump mounting
A pulley nut or keyway set addresses pulley retention, while a mounting bracket supports pump position and belt alignment; one category does not automatically replace the other. The Racing Power Nut & Key Way Set is listed as a GM pump nut and standard AMS 404 keyway set, and the Speedway Motors GM Pulley Nut is an OEM-style replacement nut. By contrast, the Moker SBC Bracket Kit includes a bracket and mounting hardware, with a slotted arm intended for tension adjustment.
The Adorish and daola888 listings focus on mounting brackets, while the Woosphy listing combines a bracket with a specified double-groove pulley. This distinction matters when diagnosing a missing or worn component: replacing a bracket will not supply the described nut-and-keyway set, and a new nut alone will not correct bracket position or belt alignment.
How to Choose Power Steering Pump Hardware
Choose the hardware type you actually need
First decide whether the job calls for pulley-retention hardware, a mounting bracket, or a combined bracket-and-pulley kit. The Racing Power Nut & Key Way Set lists a GM pump nut and standard AMS 404 keyway, while the Speedway Motors GM Pulley Nut is a single OEM-style nut. The Moker SBC Bracket Kit includes a bracket and mounting hardware; the Woosphy GM Bracket Pulley Kit lists a bracket with a double-groove pulley.
Buyers replacing a missing nut or keyway should favour the first two options, while a pump relocation or bracket replacement calls for a bracket product. Choose the combined Woosphy kit only if its stated keyway and pulley details match the setup.
Match water-pump configuration and engine fitment
Look for the exact engine and water-pump configuration in the listing rather than relying on an SBC label alone. The Moker SBC Bracket Kit is specified for SBC engines with a long water pump and named pump styles. The Adorish SBC Mounting Bracket and daola888 SBC Bracket both state compatibility with short- and long-water-pump setups; the Adorish listing also mentions single- or double-groove pulleys.
The Speedway Motors GM Pulley Nut instead targets most GM Saginaw and Chevy pumps. A buyer with a confirmed long-water-pump arrangement can consider Moker, while someone needing stated short- and long-water-pump bracket coverage should compare Adorish or daola888 against the actual pump and pulley.
Check pulley attachment and belt details
Confirm the pulley attachment, groove count, and belt arrangement before selecting hardware. The Woosphy GM Bracket Pulley Kit specifies a keyway attachment, 5/8-inch keyway bore, 5 3/4-inch outside diameter, and two grooves. Moker states compatibility with V-belts and single- or dual-rib pulleys, and its slotted arm allows belt-tension adjustment.
Adorish lists single- or double-groove pulley compatibility but does not give the same dimensional detail. Buyers who already know they need the Woosphy kit’s exact keyway and pulley dimensions can use those listed values to compare; for an adjustable V-belt bracket on a long-water-pump SBC, Moker’s stated configuration is the more relevant clue.
Verify dimensions against existing parts.
Which power steering pump hardware should I choose?
Choose the Racing Power Nut & Key Way Set if you need a GM pump nut and standard AMS 404 keyway set; it leads because the listing combines two directly relevant retention components. For a factory-style replacement nut on a GM Saginaw or Chevy pump, select the Speedway Motors GM Pulley Nut. If your task is bracket mounting on an SBC with a long water pump and a listed pump style, the Moker SBC Bracket Kit offers a slotted tension-adjustment arm.
The Adorish SBC Mounting Bracket is a candidate when the listing’s short- or long-water-pump coverage and single- or double-groove pulley wording match your setup. Consider the daola888 SBC Bracket for its stated steel construction, or the Woosphy GM Bracket Pulley Kit only when its double-groove pulley and 5/8-inch keyway bore suit your parts.
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Frequently Asked Questions
How do I identify whether my power steering pump uses a keyway or another pulley attachment?
Check the pump shaft and pulley attachment before choosing hardware: identify whether the shaft uses a keyway and compare the required parts with the listing. The Racing Power set specifies a standard AMS 404 keyway and includes a GM pump nut. If the attachment is unclear, confirm it against your pump or its documentation.
How can I confirm whether my small-block Chevy has a long or short water pump?
Confirm the water-pump type on your engine before selecting a bracket, then match it to the listing’s stated coverage. Some listed brackets specify a long water pump, while others mention both LWP and SWP. If you cannot identify yours confidently, verify the engine setup before ordering rather than relying on engine family alone.
What should I check to prevent pulley misalignment or belt-tension problems after installation?
Match the bracket and pulley setup to your engine and water-pump configuration, then check that the pulleys line up and the belt tracks correctly. Confirm the required pulley groove arrangement as well. A slotted tension-adjustment arm is specified for the Moker kit; use its adjustment range only if that kit matches your setup.
When should I choose a pump nut and keyway set instead of a mounting bracket?
Choose a nut and keyway set when you need pulley-retention hardware, not engine mounting. The Racing Power listing combines a GM pump nut with a standard AMS 404 keyway set. A bracket is the relevant choice when mounting the pump; match its stated engine and water-pump coverage to your vehicle’s configuration.
What should I verify before choosing a double-groove pulley kit?
Verify that your setup calls for a double-groove pulley and that the listed bore matches your pump parts. The Woosphy kit is described as having a double-groove pulley and a 5/8-inch keyway bore, so those details matter when assessing fit. Do not assume the kit suits a different groove or shaft arrangement.
Final Words
For pulley retention, choose the Racing Power set when you need both a GM pump nut and standard AMS 404 keyway; select the Speedway nut for an OEM-style GM Saginaw or Chevy replacement. For mounting, first confirm your engine and long- or short-water-pump setup, then match bracket coverage and pulley wording. Check groove and bore requirements before choosing the Woosphy kit.
