Shop
Eaton-Fuller transmission air valves for Class 7-8 heavy-duty trucks – Cut Costs While Maintaining Quality
Manufactured on proven OEM production lines. Factory-direct replacement parts: A-5000, K-3331, A-4740. Stocked in Katy, TX with free shipping.
🚚 Bulk Pricing – Mix & Match, No Model Minimums
Discounts are based on your total order quantity. Mix any models freely; pricing tiers unlock at 4+ / 8+ / 15+ / 26+ / 51+.
💰 Quarterly Rebate – Earned on Quarterly Volume, Applied to Next Quarter
Quarterly volume rebates help lower your net purchase cost. Rebates are calculated across all models at quarter-end and credited to your first order in the following quarter.
🔒 Secure Accepted Payment Methods
Pay conveniently via credit card or PayPal right on our website. Bank wire transfer is also available for bulk orders placed by email.
- Credit / Debit Cards: Visa / Mastercard / Amex / Discover
- PayPal: Bank accounts / Apple Pay / Google Pay
- WorldFirst payment link: Visa / Mastercard / Amex / Discover (Credit / Debit Cards) (PayPal account not needed)
- Bulk wire transfer: Available for email bulk orders






Showing all 3 results
-
Products
A-4740 Air Filter Regulator
Original price was: $54.99.$46.79Current price is: $46.79. Add to cartOE‑equivalent aftermarket A‑4740 air filter regulator, 3/8″NPT inlet & 1/8″NPT outlet, replacement part for Eaton Fuller heavy‑duty truck transmissions.
-
Products
A-5000 Slave Valve
Original price was: $79.99.$69.29Current price is: $69.29. Add to cartOE‑equivalent aftermarket A‑5000 slave valve, range shift control part for Eaton Fuller heavy‑duty manual transmissions.
-
Products
K-3331 Splitter Valve
Original price was: $74.99.$65.69Current price is: $65.69. Add to cartOE‑equivalent aftermarket K‑3331 splitter valve, air shift component for Eaton Fuller heavy‑duty truck transmissions.



