Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / Diamond Eye Performance / New

Diamond Eye KIT 4in TB HX40 DWNP 221040 SGL AL 94-02 CUMMINS 5 9L NO WARRANTY ON FITTMENT-CSTM KIT

Diamond Eye Performance · New

Diamond Eye KIT 4in TB HX40 DWNP 221040 SGL AL 94-02 CUMMINS 5 9L NO WARRANTY ON FITTMENT-CSTM KIT

MPN K4212A-HX40-RP · Store SKU depK4212A-HX40-RP

$926.79
CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/7/2026, 5:03:39 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

Diamond Eye KIT 4in TB HX40 DWNP 221040 SGL AL 94-02 CUMMINS 5 9L NO WARRANTY ON FITTMENT-CSTM KIT

Manufacturer fitment & guides

Check K4212A-HX40-RP against the manufacturer’s application information below.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

Part-specific notes

  • Not CARB approved. Destination and intended-use restrictions must be checked before sale.
  • Emissions acknowledgement required before purchase.
More from Diamond Eye Performance ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your build.