Click to zoom in
Front Suspension Support for Tacoma Trail and Off-Road Builds
Old Man Emu front coil springs are matched to the Toyota Tacoma platform to support controlled ride height and suspension response. This 4004 set uses X5K micro-alloyed spring steel and a 588 lbf/in spring rate for the verified applications below.
Key Features
- Old Man Emu 4004 front coil spring set for selected 2016-2023 Toyota Tacoma applications
- X5K micro-alloyed spring steel for resistance to sagging and corrosion
- Double-scragged coil construction for consistent spring performance
- Computer precision mandrel forming for vehicle-specific fit
- Matte black powder coat finish for durable coverage
- 588 lbf/in spring rate with 0.7 in bar diameter and nine turns
- Designed for use with compatible Old Man Emu MT64 and Nitrocharger Plus shocks
- Published fitting time of 0.5 hour
Fitment
| Year | Make | Model | Submodel | Engine | Position |
|---|---|---|---|---|---|
| 2016-2023 | Toyota | Tacoma | Limited | 3.5L V6 gasoline | Front |
| 2016-2023 | Toyota | Tacoma | SR | 2.7L L4 gasoline | Front |
| 2016-2023 | Toyota | Tacoma | SR | 3.5L V6 gasoline | Front |
| 2016-2023 | Toyota | Tacoma | SR5 | 2.7L L4 gasoline | Front |
| 2016-2023 | Toyota | Tacoma | SR5 | 3.5L V6 gasoline | Front |
| 2021 | Toyota | Tacoma | Trail | 3.5L V6 gasoline | Front |
| 2023 | Toyota | Tacoma | Trail Special Edition | 3.5L V6 gasoline | Front |
| 2016-2023 | Toyota | Tacoma | TRD Off-Road | 3.5L V6 gasoline | Front |
| 2017-2023 | Toyota | Tacoma | TRD Pro | 3.5L V6 gasoline | Front |
| 2016-2023 | Toyota | Tacoma | TRD Sport | 3.5L V6 gasoline | Front |
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | 4004 |
| Brand | Old Man Emu |
| Product type | Front coil spring set |
| Color | Black |
| Finish | Matte black powder coat |
| Material | X5K micro-alloyed spring steel |
| Coil weight | 5 lb |
| Free height | Driver side A 15.6 in, passenger side B 15.6 in |
| Spring rate | 588 lbf/in |
| Bar diameter | 0.7 in |
| Number of turns | 9 |
| Fitting time | 0.5 hour |
| Warranty | 3 years |
| Prop 65 | No |
What’s Included
- One Old Man Emu front coil spring set, part 4004
About Old Man Emu
Old Man Emu develops vehicle-specific suspension components with application-focused spring and damper matching. This coil spring set is part of the Old Man Emu suspension system for the listed Tacoma applications.
FAQ
What is the 4004?It is the manufacturer part number for this Old Man Emu front coil spring set.
Which Tacoma applications are covered?It fits the Tacoma year, trim, and engine combinations listed in the Fitment table. Check the exact trim and engine before ordering.
Is this a front or rear spring?This set is for the front position only.
What material is used?The springs use X5K micro-alloyed spring steel with a matte black powder coat finish.
What spring rate is specified?The published spring rate is 588 lbf/in.
Is a shock absorber included?No. The package is the front coil spring set. The manufacturer designed these springs to work with compatible Old Man Emu shocks.
Can these springs be used with the original shocks?Confirm compatibility with the complete suspension setup and the vehicle load. The manufacturer identifies matching Old Man Emu shocks as the intended integrated pairing.
How should the springs be installed?Use a qualified installer and follow the Tacoma service procedure for safe coil spring removal and installation. Inspect related suspension components before assembly.
What warranty applies?The published warranty period is three years.
What should be checked after installation?Verify spring seating, suspension fastener torque, ride height, and alignment before normal driving.
Installation Instructions
- Confirm the vehicle year, Tacoma trim, engine, and front position against the Fitment table before disassembly.
- Record the original ride height and inspect the front suspension for worn or damaged components.
- Use a suitable spring compressor and follow the Toyota service procedure to remove the original front springs safely.
- Install the 4004 springs in the correct front spring seats and verify that each coil is fully seated.
- Reassemble the front suspension using the vehicle service manual torque specifications.
- Check clearances, settle the suspension, remeasure ride height, and obtain an alignment when required.
- Perform a controlled inspection before returning the vehicle to regular use.
Old Man Emu
Old Man Emu suspension, the off road suspension brand of ARB, is stocked at Black Ops Auto Works for Jeep, Toyota, Ford, and RAM trucks and SUVs. Shop OME coil springs, leaf springs, Nitrocharger and BP-51 shocks, and full coilover kits for Toyota 4Runner, Land Cruiser, Land Cruiser Prado, Tacoma, Jeep Wrangler and Gladiator, Ford F-150 and Ranger, and Nissan Pathfinder applications. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 283 Old Man Emu SKUs across coil springs, leaf springs, shocks, and coilover categories. What This Brand Covers Old Man Emu, known as OME, is the suspension division of ARB 4x4 Accessories, engineering off road and load carrying suspension systems since the brand's founding in Australia. OME suspension is designed and tested using CAD modeling and finite element analysis, then validated with independent testing partners for vibration, strength, and dur...
View Old Man Emu Products