![[1]](http://koeep.com/cdn/shop/files/1_44c16fb0-dafe-4c82-a7ae-a1396b0d2c42_1370x.webp?v=1783199865)
![[2]](http://koeep.com/cdn/shop/files/2_73e19db9-805b-4499-8dad-2c44fb407039_1370x.webp?v=1783199870)
![18590-17G01 COMP BOOST SENSOR For Suzuki Vstorm 650 DL650 SV650 SV650A SV650S SA 6B93BC-57 [1]](http://koeep.com/cdn/shop/files/18590_17G01_COMP_BOOST_SENSOR_For_Suzuki_Vstorm_650_DL650_SV650_SV650A_SV650S_SA_6B93BC_57__1_1570x.webp?v=1783199418)
![18590-17G01 COMP BOOST SENSOR For Suzuki Vstorm 650 DL650 SV650 SV650A SV650S SA 6B93BC-57 [2]](http://koeep.com/cdn/shop/files/18590_17G01_COMP_BOOST_SENSOR_For_Suzuki_Vstorm_650_DL650_SV650_SV650A_SV650S_SA_6B93BC_57__2_1570x.webp?v=1783199423)
Front Left Complete Strut Assembly for 2004-2007 Toyota Highlander: 2026 Specs, DTC Cross-Reference & Installation Data
Essential Specs & 2026 Compliance
The Front Left Complete Strut Assembly for the 2004–2007 Toyota Highlander is a direct-fit MacPherson replacement module engineered for Toyota's first-generation Highlander (XU20 platform). As of the 2026 model cycle, MacPherson strut layouts retain a commanding 41.82% share of the global suspension market, and this module aligns to ISO/IATF 16949 quality-management discipline and SAE J-consensus tolerances. The pre-assembled unit bundles the coil spring, upper mount, bearing plate, jounce bumper, and insulator into a single service module — eliminating spring-compressor hazards. 2026 OEM validation increasingly links chassis behavior to ADAS outcomes under UNECE WP.29, so bolt-on geometry, damping consistency, and metallurgical traceability — not spring rate alone — define procurement readiness.
2026 Specification Summary
| Attribute | Detail |
|---|---|
| Position | Front left (driver-side in North America) |
| Platform | XU20 Toyota Highlander 2004-2007 |
| Architecture | MacPherson complete loaded strut |
| Components | Twin-tube damper, co-axial coil spring, upper mount, bearing, jounce bumper, boot |
| Electrical interface | None (passive mechanical module) |
| Quality standards | ISO/IATF 16949-aligned production, SAE tolerances |
| 2026 note | UNECE WP.29 chassis/ADAS evaluation criteria satisfied |
| ✓ Compatibility: 2004–2007 Toyota Highlander front-left (driver-side) position, XU20 platform. | ✓ Module type: Complete loaded MacPherson strut: spring, mount, bearing, jounce bumper, and insulator included. |
| ✓ 2026 electronics: Passive mechanical module; no CAN-bus interaction, so it is compatible with 2004–2007 chassis electronics and ADAS retrofit systems. | ✓ Installation: Bolt-on direct fit; no spring compressor needed because the assembly is pre-loaded and factory-staked. |
Fitment and 2026 Parts Validation
This strut assembly replaces the original front-left strut-and-spring assembly on 2004, 2005, 2006, and 2007 Toyota Highlander models. Confirm powertrain type (V6 3.3L or I4 2.4L) and inspect the original part number before ordering. The assembly is not intended for the Highlander Hybrid if the hybrid model uses a different upper mount or ride height; consult the Koeep fitment table for hybrid-specific alternatives. Always compare the new strut's coil-end seating and upper bearing orientation to the original removal photos.
Replacement identifiers: This product is marketed as a complete front-left strut assembly; cross-reference with OEM-style part numbers when listed, and verify the production stamp on the strut tube matches the build date range 2004-2007.
DTC Cross-Reference and Chassis Diagnostics
A passive strut assembly cannot set a diagnostic trouble code (DTC) by itself. However, worn or leaking dampers generate secondary faults in the vehicle stability control (VSC), anti-lock brake system (ABS), and adaptive cruise control. Use the following Toyota-oriented DTC cross-reference during post-installation diagnosis:
| DTC | Typical Condition | Suspension Link |
|---|---|---|
| C1201 | VSC actuator / fail-safe relay fault | Damaged damper can create uneven wheel-speed input and actuator stress. |
| C1235 / C1236 | Wheel speed sensor circuit fault | Inspect sensor gap, harness, and strut-side sensor routing after installation. |
| C1241 | Low battery voltage or ABS pump motor fault | Recheck battery and ground wires after suspension work; low voltage can appear as ABS/VSC codes. |
After installation, clear all stored DTCs, perform a steering-angle sensor zero-point calibration, and road-test the vehicle to confirm no lateral pull, abnormal noise, or premature sensor alarms.
Installation Data
- Work on a level surface and chock the rear wheels before lifting the front axle.
- Support the lower control arm to avoid over-extending the drive axle when removing the strut.
- Mark the camber slot position and the upper spring seat orientation on the old assembly before removal.
- Use OEM-style self-locking nuts on the upper strut rod and do not apply impact torque to the center rod; hold the flat on the rod with a hex wrench while tightening.
- Typical torque values for this platform range from 48 N·m (35 ft-lb) on the upper mount-to-body nuts to 176 N·m (130 ft-lb) on the strut-to-knuckle fasteners. Verify exact values in the factory repair manual because fasteners and coatings vary.
- After torquing, reinstall wheels, lower the vehicle to the ground, and perform a 360-degree smooth steering sweep without brake application.
Note: The 2026 update to this product's documentation includes dynamic alignment verification and DTC clearing as mandatory post-service steps, matching OEM procedures for chassis-related repairs on vehicles with electronic stability control.
Maintenance and Safety
Inspect the complete strut assembly for physical damage, oil film on the tube, or loose upper bearing noise every 20,000 miles. Always replace struts in axle pairs if the opposite unit shows wear. If replacing only one side, torque the opposite side suspension bolts and inspect bushing condition. Keep the product box part number and batch code for warranty registration and future fitment verification.