Aeromotive A1000 Fuel Pump ACL Main Bearing Set 5M1644H-.25; Race Series .25mm for 83-03 Audi/VW 1.6-2.0 Specifications
- Main Bearings Series: Race Series
- Year: 1983 to 2003
- Make: Audi, Volkswagen
- Model: A3, A4, A6, TT, 80, 90, 100, Golf, Jetta, Passat
- Engine: 1.6L, 1.8L, 2.0L
- Bearing Undersize: 0.250 mm
- Usage: Performance
- Construction: Tri-Metal
- Backing Layer Material: Steel
- Bearing Lining or Intermediate Material: Copper, Lead, Tin
- Overlay Material: Lead, Tin, Copper
- Coated: No
- Chamfered: Yes
- Bearing Width: 0.728 in.
- Standard Bearing Thickness (Without O/S): 0.099 in.
- Standard Crank Pin Diameter (Without O/S): 2.124 in.
- Standard Housing Diameter (Without O/S): 2.323 in.
- Quantity: Sold As Set (5/pkg)
Features
- Full (180 degree) grooved uppers with matching partial groove in lowers.
- Reduces interruption to big end oil supply.
- Tapered groove run-out.
- Smooths big end supply cut-off avoiding pressure pulsing and cavitation.
- A blend of characteristics to provide high strength and excellent seizure resistance.
- No flash plating is applied to further improve bearing retention and maximise heat transfer.
- Improved bearing retention from higher radial contact pressure.
- Locks the bearing into the housing.
- More effective heat dissipation through improved thermal transfer.
- Definition: Gradual reduction in wall thickness between the crown and parting line.
- ACL Race Series performance engine bearings feature increased eccentricity to improve shape adaptation to compensate for bore distortion at high speed operation.
- Assists in the formation of hydrodynamic oil film.
- Accommodate larger fillet radii on performance crankshafts.
Description
ACL Race Series performance engine bearings are manufactured to exacting tolerances. Micron-level machining, supported by precision measurement systems, ensures consistent accuracy in key characteristics such as wall thickness and crush. This delivers a reliable fit and helps maintain consistent clearances.
WARNING: This product can expose you to chemicals including chromium, known to the State of California to cause cancer and birth defects or other reproductive harm. More info Store Policies Payment
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Shipping
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Returns
New & unused items may be returned within 30 days of invoice. Items must be in the original packaging. All video tapes, software, books and electrical items MAY NOT be returned! Shipments must be PREPAID using UPS, US Mail, or FedEx Ground. Collect shipments will be refused. For your protection, we recommend insuring the package for the full value. Refunds will be made to the original form of payment. Freight on new returns may be deducted from the refund amount if the original sale had free shipping. Please note, in some cases, a restocking fee also may be deducted from the original amount. For defective returns, please provide as much information as possible in the return request. Please provide pictures if possible (for both the item and the packaging).
To return an item, please follow the steps below:
Request a return authorization through your account. Wait for an RGA number to be issued Write the RGA number on the outside of your shipping box, and ship the item. Wait for the return to process and refund to be received. This process may take up to 5 days. Most returns are processed within 24 hours. Warranty
Most parts come with a limited manufacturer\'s warranty on the part ONLY. This warranty DOES NOT include labor cost for installation and removal or shipping. PERFORMANCE PARTS HAS NO WARRANTY, EXPRESSED OR IMPLIED, BEYOND THE WARRANTY OF THE MANUFACTURER. For all warranty returns, request a return authorization (as detailed above), including a detailed description of the warranty issue. If the warranty return is beyond 60 days, the return can only be issued as in-store credit or an exchange. does not allow us to issue a refund beyond 60 days.
Photos
We do our best to display images of the actual product being sold. Occasionally, we use a universal image because the manufacturer has not supplied us with a photo. In some cases, the image being displayed may be different due to a running change by the manufacturer, for which a new image has not be supplied. If you have any questions regarding the accuracy of the photo of the item, please contact us prior to purchase.
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We employ a range of fraud control measures, including, but not limited to videographic and photographic recordings of all items and packages, and serializing and documentation of all items received and shipped. All instances of fraud are referred to IC3, as well as state and local authorities, and will be prosecuted.
Customer Service
Available Monday to Friday, 8:30 AM – 5:30 PM Central Time.
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