Product Description
Cummins 3990093 — Throttle Linkage Rod End, 33 mm Short, Right-Hand Thread
MPN: 3990093 | Also Known As: control rod end, throttle ball joint, front rod end | Position/Style: Short (≈33 mm), RH thread
Why This Part
- ✓ OE replacement for worn or stripped throttle rod ends on 12-valve 5.9L.
- ✓ Short (33 mm) right-hand thread version for the *front/short* end of linkage.
- ✓ Restores smooth pedal feel and proper idle/throttle response.
- ✓ Hardened ball/socket for durability and long service life.
Quick Specs
| Type | Throttle linkage control rod end (ball joint) |
|---|---|
| OE Part # | 3990093 (short, 33 mm, RH) |
| Thread Direction | Right-hand |
| Typical Mate | 3990095 (long, 45 mm, RH) — sold separately |
| Qty on Vehicle | Usually 2 ends per linkage (short + long). Inspect both. |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1991–1998 | 5.9L 12-Valve Cummins (VE & P7100) | Dodge/Ram 2500 & 3500 (Short rod end) |
Notes: This is the *short* 33 mm RH end. The *long* 45 mm end is 3990095. Always verify by VIN/ESN and measure your existing linkage.
Often Paired With
- Long Rod End: Cummins 3990095 (45 mm, RH) for the opposite end
- Linkage Hardware/Clips: replace if worn for best results
What’s In The Box
- (1) Genuine Cummins Throttle Linkage Rod End — 33 mm RH (3990093)
- Long end (3990095) sold separately.
Install Tips
- Match thread direction and length to the part you’re replacing (short vs. long).
- Apply anti-seize to threads; tighten securely and verify full pedal travel.
- After install, confirm idle and WOT positions; adjust linkage if needed.
FAQ
WILL THIS FIT MY 1991–1998 5.9L 12-VALVE?Yes—this is the *short* (33 mm) RH-thread rod end commonly used on 1991–1998 5.9L 12V trucks. Always verify your linkage uses the short end at that position.
WHICH END IS THIS—SHORT OR LONG?This is the short 33 mm RH-thread end (front/short position). The long 45 mm RH-thread end is part 3990095.
IS THE THREAD RIGHT-HAND OR LEFT-HAND?Right-hand thread.
HOW MANY ROD ENDS DO I NEED?Most linkages use two ends (one short + one long). Inspect both; replace in pairs if wear is similar.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3990093 for proper fit and durability.
Product Videos
Custom Field
Product Reviews
4 Reviews Hide Reviews Show Reviews
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The product was just as it was supposed to be.
I am pleased with my purchase.
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Parts
Perfect fit easy install!!
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Throttle link
fit like it supposed to back on the road
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OEM Parts
Talk to customer service and she was very helpful and provided the info I needed. Ol’ 12 valve is back on the road!
