Best Evap System Leak Detection Pump: Compare 10 Replacement Parts

#1 · Best Overall

1. Dorman 310-219

• Weight: 3.2 oz
• Material: Plastic
• Material Type: Plastic

Best for: Plastic direct-replacement pump.

Why it ranks #1: A direct replacement designed to match original fit and function on specified applications; it is plastic, includes an EVAP System Integrity Module, and has a limited lifetime warranty.

Dorman’s direct-replacement approach is the defining feature: on a specified application, the pump is intended to match the original part’s fit and function. That gives owners replacing a clogged or failed pump a clearly stated restoration path, rather than requiring them to adapt a differently described component to the vehicle.

The plastic construction keeps the listed unit light at 3.2 ounces, while its 4.4-by-3.15-by-3.2-inch dimensions give installers a concrete size reference. Dorman says the replacement restores functionality when an original pump has clogged or failed because of emissions-control system damage. Its stated original-equipment fit-and-function match is useful for repair planning, but the supplied details do not identify vehicle applications, so fitment remains the key check before ordering.

Skip it if you need vehicle-by-vehicle fitment details in this listing; Gedlex 310-219 lists multiple makes and model years.

This suits a Dorman replacement shopper whose vehicle application has already been verified and who wants an original-function match. Its compact plastic construction is clearly specified, but the listing details supplied here do not establish which vehicles it fits.

Listed on Amazon as: Dorman 310-219 Evaporative Emissions System Leak Detection Pump

#2 · Broad Fitment List

2. Gedlex 310-219

• Weight: 0.11 kg
• Material: Plastic
• Material Type: Plastic

Best for: Broad listed model-year coverage.

Why it ranks #2: Lists numerous Dodge, Chrysler, Jeep, Fiat, Alfa Romeo, and Ram applications, plus reference numbers including 4861959AA and 52855827AA.

Gedlex’s long compatibility list is its clearest differentiator, covering several Dodge, Jeep, Ram, Chrysler, Fiat, and Alfa Romeo applications. For buyers whose vehicle appears in those entries, the listed replacement reference numbers and automatic operation provide useful identification points when narrowing down a pump.

The listing supplies reference numbers including 4B1593, ESM1003, and 4861959AA, giving a parts search several identifiers to compare with the existing component. It also names model-year ranges for vehicles such as Dodge Nitro, Jeep Liberty, and Ram 1500, which helps owners screen applications before purchase. Plastic construction and automatic operation are specified; however, fitment still depends on the exact model and year matching the listing, not simply the vehicle brand.

Skip it if you need a pump for a model outside its listed years; Dacall 310-219 explicitly includes some later Ram 1500 applications.

This is a candidate for owners of a listed Dodge, Jeep, Ram, Chrysler, Fiat, or Alfa Romeo application who can match the year and reference number. Its broad list is useful, but it does not establish universal compatibility.

Listed on Amazon as: 310-219 Evaporative Emissions System Leak Detection Pump

#3 · Detailed Fitment

3. Dacall 310-219

• Weight: 5.6 oz

Best for: Explicit fitment-year screening.

Why it ranks #3: Provides model-year fitment details for several brands and explicitly flags Durango and Grand Cherokee year exclusions; listed weight is 5.6 ounces.

Dacall spells out both covered years and exclusions, making fitment screening its main advantage. Its 310-219 and 4861959AA identifiers accompany applications across several makes, while the explicit Durango and Grand Cherokee year gaps help buyers avoid treating a model name alone as proof of compatibility.

The fitment list includes, among others, Alfa Romeo 4C, Chrysler Aspen, Fiat 500, Dodge Durango, Jeep Grand Cherokee, and Ram 1500 applications. That breadth can help shoppers compare their exact vehicle and year against a single listing. More importantly, the stated exclusions—Durango 2016–2017 and Grand Cherokee 2016–2017—make year-by-year checking essential. The supplied specifications give package dimensions and a 5.6-ounce weight, but do not describe installation hardware or operating details.

Skip it if you own a 2016–2017 Durango or Grand Cherokee; check the Gedlex 310-219 listing for its stated application ranges instead.

This fits a buyer willing to verify an exact make, model, and year against a detailed application list. The named exclusions are useful boundaries, so owners of those Durango or Grand Cherokee years should choose another verified application.

Listed on Amazon as: 310-219 4861959AA Dacall Evaporative Emissions System Leak Detection Pump

#4 · United States Origin

4. Standard Motor Products LDP12

• Weight: 2.24 oz

Best for: Compact LDP12 replacement search.

Why it ranks #4: The listing identifies this as an EVAP leak detection pump, gives model LDP12 and a 2.24-ounce weight, and states country of origin as the United States.

Standard Motor Products identifies this pump by the LDP12 model designation, giving shoppers a concise part identifier to compare during replacement research. Its approximately three-inch listed footprint also offers a useful physical reference for a repair plan, although the supplied product details do not name compatible vehicles.

The listing calls the product an evaporative emissions system leak detection pump and gives dimensions of 3 by 3 by 3.6 inches, helping buyers estimate its physical scale. A package quantity of one clarifies that the listing describes a single auto part. Those details support basic identification and handling decisions, but they do not establish vehicle fitment, connection dimensions, or installation steps. Confirming the LDP12 application from a separate reliable vehicle-parts reference is therefore necessary before relying on this listing.

Skip it if you need vehicle-specific fitment stated on the listing; Gedlex 310-219 supplies multiple make and model-year applications.

This may suit a parts researcher who already knows that LDP12 is the required identifier and can verify application elsewhere. Its dimensions aid physical planning, but the supplied information alone cannot confirm that it fits a particular vehicle.

Listed on Amazon as: Standard Motor Products LDP12 Evaporative Emissions System Leak Detection Pump

#5 · Metal Construction

5. Dorman 310-233

• Weight: 0.27 g
• Material: Metal
• Material Type: Metal

Best for: Metal-bodied Dorman replacement.

Why it ranks #5: Its listed metal material distinguishes it from the plastic pumps, and the listing gives dimensions of 3.15 x 3.15 x 4.33 inches.

A metal body distinguishes Dorman’s 310-233 from the plastic-bodied options described in this roundup. The pump is also presented as a direct replacement for specified applications, giving owners a stated route to restore a clogged or failed original while keeping material choice in view.

Dorman’s fit-and-function match is intended to support a like-for-like replacement when the vehicle application is appropriate, and the company says the pump restores functionality after an original has clogged or failed from emissions-control system damage. Its metal construction is specifically listed, as are a 0.63-inch inlet and 1.38-inch outlet connection. Those measurements assist connection comparisons during repair planning, but the supplied facts do not identify vehicle applications or provide installation instructions.

Skip it if you need vehicle-specific applications listed up front; Dacall 310-219 provides model-year coverage and exclusions.

Choose this for a verified application where a metal-bodied Dorman replacement and stated connection measurements suit the repair. The supplied listing does not establish vehicle fitment, so confirm the application independently before treating it as a match.

Listed on Amazon as: Dorman 310-233 Evaporative Emissions System Leak Detection Pump

#6

6. Dorman 310-215

• Weight: 0.04 kg
• Material: Plastic
• Material Type: Plastic

Best for: Dorman stock-size replacement.

Why it ranks #6: Dorman describes it as a direct replacement for specified applications and lists plastic construction, a limited lifetime warranty, and 0.63-inch inlet connection size.

Dorman describes this pump as a direct replacement intended to match the original part’s fit and function on specified applications. Its listed connection sizes add practical installation checks: a 0.63-inch inlet and 1.38-inch outlet help a repairer compare the unit with the vehicle’s existing connections.

The stock-size designation and direct-replacement description support a like-for-like repair workflow when the application is verified. Dorman says the pump can restore functionality when an original part has clogged or failed following emissions-control system damage. Plastic construction and listed dimensions of 3.07 by 3.07 by 7.5 inches provide material and packaging references, while the inlet and outlet sizes help assess connection compatibility. The supplied details do not name vehicle applications, so those must be established separately.

Skip it if you need the listing itself to identify vehicle applications; Gedlex 310-219 provides multiple named model-year ranges.

This is a sensible candidate for a repairer who has verified the application and needs a direct-replacement pump with stated connection sizes. Check those dimensions against the existing setup; the supplied listing does not name compatible vehicles.

Listed on Amazon as: Dorman 310-215 Evaporative Emissions System Leak Detection Pump

#7

7. Dorman 310-218

• Weight: 4.16 oz
• Material: Metal
• Material Type: Metal

Best for: Metal direct-replacement option.

Why it ranks #7: The listing describes a direct replacement for specified applications and gives metal construction, a 4.16-ounce weight, and a limited lifetime warranty.

Dorman combines a metal construction specification with a direct-replacement description, making material and original-part matching the key decision points for this 310-218 pump. On specified applications, it is intended to match original fit and function and restore operation after a pump has clogged or failed.

The product is identified as an EVAP system integrity module and lists metal as its material, a useful distinction for shoppers comparing replacement construction. Dorman’s stated fit-and-function match can help organize a like-for-like repair when the exact application is known. The listing also supplies connection and thread measurements, giving installers additional dimensions to compare with the existing part. However, vehicle applications are not named in the supplied details, so those measurements do not by themselves confirm fitment.

Skip it if you need vehicle applications stated in the product details; Gedlex 310-219 lists several makes and model-year ranges.

This suits a buyer who has independently confirmed a 310-218 application and wants a metal Dorman direct-replacement option. Use the listed measurements as comparison points, not as a substitute for vehicle-specific fitment verification.

Listed on Amazon as: Dorman 310-218 Evaporative Emissions System Leak Detection Pump

#8

8. Standard Motor Products LDP14

• Weight: 4.2 oz

Best for: LDP14 part-number lookup.

Why it ranks #8: This is listed as an EVAP system leak detection pump with model LDP14; the supplied details give a 4.2-ounce weight but no vehicle fitment list.

Standard Motor Products gives this pump the LDP14 model designation, a direct identifier for shoppers comparing an existing part or a repair reference. It is described as an evaporative emissions system leak detection pump, but the supplied information leaves vehicle application as the crucial separate verification step.

The LDP14 identifier helps distinguish this listing from other Standard Motor Products pump entries, while the product description confirms its role as an evaporative emissions leak detection pump. A single-unit package quantity is specified, and the product details give a 3.03-by-3.03-by-3.63-inch dimension set. These facts support basic part identification and physical planning, but no compatible vehicle models or connection specifications are provided in the supplied data.

Skip it if you need listed vehicle fitment or connection measurements; A-Premium’s older-vehicle pump supplies specific port dimensions.

This is for a shopper who has already verified LDP14 as the required identifier and wants the listed pump type and dimensions. If the application is uncertain, the supplied details alone are not enough to establish a vehicle match.

Listed on Amazon as: Standard Motor Products LDP14 Evaporative Emissions System Leak Detection Pump

#9

9. A-Premium Vapor Leak Pump

• Weight: 0.46 kg
• Material: Plastic
• Material Type: Plastic

Best for: Audi and BMW application search.

Why it ranks #9: Its listed applications include Audi A3 and numerous BMW models, but the supplied fitment details do not establish compatibility with the more broadly listed 310-219 replacements.

A-Premium’s supplied fitment details name Audi A3 and A3 Quattro models from 2015–2018 alongside a substantial selection of BMW applications. That makes its specific vehicle list the central buying aid: owners can check their model and year against the named entries before considering this plastic vapor-leak pump.

The listing’s BMW coverage spans several series and years, including 1 Series, 3 Series, 5 Series, and 6 Series entries, while the Audi A3 applications are limited to 2015–2018. This makes exact model-and-year matching more useful than relying on a broad brand label. Plastic is the specified body material, and the operation mode is listed as manual, a practical distinction for buyers comparing pump specifications. The supplied details do not establish fitment beyond the named applications.

Skip it if you require automatic operation; Gedlex 310-219 specifically lists automatic operation for its pump.

This is for an Audi or BMW owner whose exact vehicle appears in the supplied application list and who accepts a manually operated unit. Treat the listed model years as the fitment boundary, not blanket coverage for either brand.

Listed on Amazon as: A-Premium EVAP System Vapor Leak Detection Pump

#10

10. A-Premium Fuel Vapor Pump

• Weight: 1.08 lb

Best for: Older Jeep and Dodge applications.

Why it ranks #10: This pump is listed for older applications such as Ram vans, Jeep Grand Cherokee WJ, and Wrangler TJ; its 310-204 reference differs from the 310-219 listings.

A-Premium lists a focused group of older Chrysler, Dodge, Jeep, and Plymouth applications, with two 0.7-inch outside-diameter ports as its most concrete installation detail. That combination helps a buyer compare the vehicle application and hose connections when replacing the specified fuel-vapor leak detection pump.

The stated fitment includes Chrysler and Plymouth Prowler applications, Dodge Ram 1500 and Ram vans from 2001–2003, and Jeep Grand Cherokee WJ and Wrangler TJ entries. Two ports and matching 0.7-inch inlet and outlet outside diameters give installers specific connection measurements to compare. The listed length is 4.5 inches, another useful packaging reference. A filter is explicitly not included, so buyers whose repair requires one must account for that separately.

Skip it if you need a filter included with the pump; this A-Premium unit explicitly lists no filter.

This suits an owner of one of the listed older applications who can match the two 0.7-inch connections and 4.5-inch length. It is not the right choice when the repair calls for an included filter.

Listed on Amazon as: A-Premium Fuel Vapor Leak Detection Pump Compatible with Jeep, Dodge