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Harddrive oil pumps are made from cast aluminum that is CNC machined to close tolerances and then polished to a high gloss finish. Great value for small dollars! Surplus oil is routed back to the main passage rather than the return to avoid unnecessary filtering and offer the opportunity to upgrade earlier engines to the 81-up oiling system. This oiling system splits bottom and top end oil supply which increases oil pressure to the hydraulic lifters and and top end. They come with gaskets, drive shaft with with keys and snap ring, mounting hardware, check ball and pressure relief valve assemblies.
The HARDDRIVE polished oil pump is designed for Big Twin 1992–1999 Evo engines. Constructed from cast aluminum, it is CNC machined to close tolerances and polished to a high-gloss finish. The oiling system separates bottom-end and top-end oil supply to increase oil pressure to the hydraulic lifters and top end.
Surplus oil is routed back to the main supply passage rather than the return, helping avoid unnecessary filtering and providing an opportunity to upgrade earlier engines to the 1981-up oiling system. The pump includes gaskets, a drive shaft with keys and snap ring, mounting hardware, check ball assembly, and pressure relief valve assemblies.
For customization, the HARDDRIVE oil pump provides optional oil supply fitting locations. Models with oil tanks below the transmission should use the stock locations for best lubrication performance. Cases manufactured from 1970–1980 may require drilling.
Features:
- Construction: Cast aluminum body CNC machined to close tolerances and polished to a high-gloss finish.
- Oil routing: Surplus oil is routed back to the main supply passage rather than the return.
- Oiling system: Separates bottom-end and top-end oil supply to increase oil pressure to the hydraulic lifters and top end.
- Included components: Gaskets, drive shaft with keys and snap ring, mounting hardware, check ball assembly, and pressure relief valve assemblies.
- Customization: Provides optional oil supply fitting locations.
- Installation note: Cases manufactured from 1970–1980 may require drilling.
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RETURN POLICY 2026
ALL DISCOUNTED AND SALE ITEMS ARE A FINAL SALE !!!
We have a 14-day exchange policy on regular priced items only , ( discounted or sale items are not eligible for return ) , which means you have 14 days after receiving your item to request a exchange.
WE DO NOT REFUND we exchange only ...
PROCESSED ORDERS THAT ARE REQUESTING A CANCELLATION ARE SUBJECT TO A 20% RESTOCK FEE
To be eligible for a exchange, your item must be in the same condition that you received it, unopened or unused, with tags and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a exchange, you can contact us at usaspeedguys@gmail.com. Please note that exchanges will need to be sent to the following address and require an authorization first :
THE SPEED SHOP USA
ATT RETURNS
PO BOX 1254
PEACHLAND BC CANADA
V0H1X0
CANADA POST REGULAR SERVICE
If your exchange is accepted, we’ll send you a return authorization number, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any exchange question at usaspeedguys@gmail.com.
SHIPPING ON RETURNS IS AT YOUR EXPENSE WE DO NOT PAY FOR RETURN SHIPPING
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned LIKE custom order products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. There is NO RETURNS on lighting or electrical components at all PERIOD . Please get in touch if you have questions or concerns about your specific item.
Unfortunately, WE DO NOT accept returns on sale items, DISCOUNTED ITEMS or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
WE DO NOT REFUND WE ONLY EXCHANGE
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days . As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
Exchanges
We will notify you once we’ve received and inspected your return and let you know if the exchange was approved or not. If approved, you will have 30 days to complete your exchange.
If more than 15 business days have passed since we’ve approved your return, please contact us at usaspeedguys@gmail.com
