4139-L
Synergy Jeep Heavy Duty Replacement Tie Rod & Drag Link Ends are the exact replacement ends for your Synergy Jeep Steering Kits. Forged housings surrounding fully greaseable, sintered metal on metal bushings provide long-lasting, high performance ends. With studs made from 4140 steel and a larger shank, these rod ends outperform and outlast all other OEM and aftermarket options.
Fitment:
| Synergy Part # | Fitment | Driver Side Tie Rod End |
Passenger Side Tie Rod End |
Driver Side Tie Rod End Boot |
Passenger Side Tie Rod End Boot |
|---|---|---|---|---|---|
| 8000-01 | JK / JKU Drag Link | 4139-L | 4131-L | 4131-01 | 4131-01 |
| 8002-15 | JK / JKU Tie Rod | 4139-L | 4131-L | 4131-01 | 4131-01 |
| 8121-01 | TJ / LJ / XJ / ZJ / MJ Tie Rod | 4135-L | 4135-R | 4131-01 | 4131-01 |
| 8121-02 | TJ / LJ / XJ / ZJ / MJ Drag Link | 4135-L | 4137-L | 4131-01 | 4131-01 |
| 8155-01 | TJ/LJ, XJ, ZJ, MJ Adjustable Front Track Bar |
4135-L | - | 4131-01 | - |
| 8800-01 | JL / JLU / JT Drag Link | 4162-L | 4163-L | 4131-01 | 4131-01 |
| 8802-11 | JL / JLU / JT Tie Rod | 4163-L | 4164-L | 4131-01 | 4131-01 |
Tie Rod End Specs:
| Part # | Description | Thread | Taper | Style |
|---|---|---|---|---|
| 4131-L | HD Tie Rod End, Left Hand Thread for JK's | 7/8-18 Left Hand | 1:8 Taper (7.125 DEG INCL ANGLE) | Standard |
| 4131-R | HD Tie Rod End, Right Hand Thread for JK's | 7/8-18 Right Hand | 1:8 Taper (7.125 DEG INCL ANGLE) | Standard |
| 4135-L | HD Tie Rod End, Left Hand Thread for TJ/XJ/ZJ's | 7/8-18 Left Hand | 1:8 Taper (7.125 DEG INCL ANGLE) | Standard |
| 4135-R | HD Tie Rod End, Right Hand Thread for TJ/XJ/ZJ's | 7/8-18 Right Hand | 1:8 Taper (7.125 DEG INCL ANGLE) | Standard |
| 4137-L | HD Tie Rod End, Left Hand Thread for TJ/XJ/ZJ's | 7/8-18 Left Hand | 1:8 Taper (7.125 DEG INCL ANGLE) | Single Plane |
| 4139-L | HD Tie Rod End, Left Hand Thread for JK's | 7/8-18 Left Hand | 1:8 Taper (7.125 DEG INCL ANGLE) | Single Plane |
| 4161-L | HD Tie Rod End, Left Hand Thread for JL | 1-14 Left Hand | 1:6 Taper (9.5 DEG INCL ANGLE) | Single Plane |
| 4162-L | HD Tie Rod End, Left Hand Thread for JL / JT Drag Link | 1-14 Left Hand | 1:8 Taper (7.125 DEG INCL ANGLE) | Single Plane |
| 4163-L | HD Tie Rod End, Left Hand Thread for JL / JT Drag Link and Tie Rod | 1-14 Left Hand | 1:6 Taper (9.5 DEG INCL ANGLE) | Standard |
| 4164-L |
HD Tie Rod End, Left Hand Thread for JL / JT Tie Rod | 1-14 Left Hand | 1:6 Taper (9.5 DEG INCL ANGLE) | Single Plane |
| 4166-L | Conversion Tie Rod End (Pitman side). Adapts 8000-01 Drag Link for JL / JT with Ultimate Dana 60 axle housings only. |
7/8-18 Left Hand | 1:8 Taper (7.125 DEG INCL ANGLE) | Single Plane |
Benefits:
- Engineered with grease grooves in the ball bearings, achieving the longest lasting metal on metal rod end on the market with maximum lubrication and wear resistance
- Eliminating the nylon ball race allows for a larger ball bearing and increased strength
- The spring loaded bearing design keeps pressure on the bearings and the joint tight as it wears, preventing premature play
- Outperforms factory and all other aftermarket style tie rod ends by offering a larger shank with no stress riser (doesn't neck down at base), preventing premature failure
Features:
- Fully greaseable sintered metal on metal bushing design has high wear resistance
- Precision engineered grease grooves in the OD of the induction heat treated ball bearing
- Ultra-strong forged bearing housing made from 1018 steel
- Spring loaded bearing design keeps pressure on bearings and keeps the joint tight as it wears
- Tie Rod End stud made from 4140 steel with an extra large shank
- Heavy duty nitrile-butadiene rubber (NBR) boots and retaining springs
- DynaFlo 1/4'-28 straight steel zinc grease zerk fittings with ball check
Notes:
- These tie rod ends are replacements for Synergy MFG steering bars only - please refer to fitment table to ensure product fitment; They will not replace a factory steering linkage end
- Synergy High Performance Grease is the recommended grease for this product
- Single Plane tie rod ends offer misalignment in one direction of movement only. This eliminates drag link flop on the products they are designed for
- Zerk specs: DynaFlo 1/4'-28 straight steel zinc grease fittings with ball check
- Please double check your part numbers and fitment before ordering. We do not offer product exchanges. If you have questions or would like to confirm your part numbers, please give us a call at 805-242-0397 before ordering
 413X Exploded View |
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