Product Description
Race-ready HX-clearance rod bearings for the legendary 5.9L Cummins. INDUSTRIAL INJECTION’s PDM-CB-1413HXC set uses MAHLE/Clevite H-Series geometry with the HX spec’s +.001" extra oil clearance and a performance coating to survive high load, heat, and RPM in serious street/strip and competition builds.
Fitment
- 1989–1998 Dodge Ram 2500/3500 5.9L Cummins 12-valve (6BT)
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24-valve (ISB/VP44)
- Fits OEM 5.9L B-Series rods and journals; HX spec provides ~.001" additional clearance for performance oiling
What’s Included
- Coated HX-series connecting rod bearings — engine set (pairs for 6 connecting rods)
Why HX-Series & Coated?
- +.001" extra oil clearance helps protect at higher RPM and with crank fillet radii common in performance cranks
- Race-proven H-Series architecture: hardened steel back, thin overlay, enlarged chamfers, high crush
- Performance coating aids during cold starts or short oil starvation events and promotes oil film retention
Recommended Parts (CPP Internal Links)
- ARP 247-6303 Rod Bolt Kit — 1989–2018 Cummins
- Main Bearing Sets — 5.9L/6.7L Cummins (STD & undersizes)
- Performance & Billet Connecting Rods — Cummins
- Rod Bearings Category — Cummins 5.9L
Cross-Reference / Alternatives
- MAHLE CB-1413HX (H-Series, +.001" single shells) — individual shells; order correctly for a full engine
- MAHLE CB-1413H (H-Series, STD clearance) — standard clearance option
Helpful Notes
- Always measure crank journals and verify clearances; HX adds ~.001" oil clearance vs. H.
- Use quality assembly lube; torque rod bolts to spec and verify bearing crush and side clearance.
- Intended for competition/performance use; coating is not a substitute for proper oiling and tuning.
FAQ
What’s the difference between H and HX bearings?HX uses the same H-Series construction but is ~.0005" thinner per shell, netting about .001" additional oil clearance for performance builds.
Is this a full engine set or individual shells?This listing is for an engine set (pairs for all six rods). If you need singles, see the MAHLE H/HX options linked above.
Do I need HX clearance on a stock crank?For tight, stock-spec cranks a standard H may suffice. HX is preferred when aiming for higher RPM, more heat, or when using performance crankshaft fillets.
What should I pair with these bearings?ARP rod bolts, the correct main bearing set for your journal size, and verified oil pump/pressure. See our Recommended Parts links above.
