Description
ARP | PRO SERIES CYLINDER HEAD STUDS – 1989-1998 Dodge 4BT 3.9L Cummins
The ARP Pro Series Cylinder Head Stud Kit is the perfect upgrade over stock head bolts for your 3.9L Cummins 4BT build. Each stud is manufactured from ARP’s exclusive ARP 2000 alloy and features threads rolled after heat treatment for maximum strength, capable of withstanding up to 220,000 PSI tensile load. For long-lasting durability, the studs, parallel-ground washers, and chrome-moly 12-point nuts are finished with a black oxide coating.
Details/Features:
- Fastener Style: Stud
- Undercut Stud: No
- Head Style: 12-point
- Fastener Material: ARP2000
- Fastener Color: Black
- Washers Included: Yes
- Quantity: Sold as a kit
Shipped Australia-Wide
- Dispatched from within Australia with tracking.
- Same-day dispatch on in-stock orders placed before 11am AEST, Monday–Friday.
- Shipping is calculated at checkout based on size, weight and your delivery address.
- Estimated delivery 2–7 business days depending on your location.
Freight question? Call us on (07) 5619 7869.
ARP | PRO SERIES CYLINDER HEAD STUDS – 1989-1998 Dodge 4BT 3.9L Cummins The ARP Pro Series Cylinder Head Stud Kit is the perfect upgrade over stock head bolts for your 3.9L Cummins 4BT build.
Double Duty Diesel — Manufacturer Pass-Through Warranty
Double Duty Diesel parts carry the original manufacturer's warranty:
- Fluidampr — Lifetime warranty on harmonic balancers
- MAHLE / Clevite — 12 months on bearings, gaskets, sealing components
- Dynomite Diesel — 12 months on stock-spec injectors and pumps; performance/race spec varies
- Power Driven Diesel — 12 months on turbos and bundled tuning kits
- Returns must be notified within 30 days of delivery
- Parts only — installation not covered
Workshop fitment available at Willys for transmissions, injectors and engine internals.
Read the full Double Duty Diesel warranty terms →
Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.
