Synergy Jeep Heavy Duty Replacement Tie Rod & Drag Link Ends
Part #: 4131
Weight: 2 lbs
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 |
8802-01 | 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; 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
![]() 413X Exploded View | ![]() Comparison | ![]() GM 1 Ton Replacement w/ Nylon Bushing |
