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What Ships in the Box

The Front Complete Strut Assembly Kit for 2011-2017 Mitsubishi Outlander Sport arrives as two fully built struts, one per front corner. Coil springs, upper strut mounts, bearing plates, spring isolators, and boot kits come pre-installed on each assembly. You bolt each complete unit in as one piece.

Fitment runs from 2011 through 2017 on the Outlander Sport, including the versions badged RVR in Canada and ASX in global markets, with the 2.0L or 2.4L inline-four. FWD and AWD variants share identical front strut specifications, so one kit covers both drivetrains.

The kit is manufactured under IATF 16949:2016 and ISO 9001 quality management systems. It meets or exceeds SAE J1202 fatigue-testing protocols and ASTM B117 salt-spray corrosion standards cited for 2026 aftermarket compliance.

• Vehicle fitment: 2011-2017 Mitsubishi Outlander Sport / RVR / ASX (2.0L and 2.4L I4)
• OEM cross-reference: M332-00-111-45803-01 (strut assembly), 4060A711 (front strut bearing)
• Design: twin-tube, nitrogen gas-charged MacPherson strut
• Piston: lightweight aluminum alloy, 2026-spec hard-anodized
• Diagnostics: works with 2026 CAN-bus 3.0 chassis protocols and OBD-II per SAE J3248_202607, with full ESC and ABS sensor integration

2026 Materials and Engineering

Piston and piston rod

A 6061-T6 aluminum piston with Type III hard-anodizing (MIL-A-8625F compliant) replaces the OEM-style sintered-iron unit. Unsprung mass drops by about 18%, and heat dissipation improves by 22%.

The rod is micro-polished and hard-chrome plated to Ra ≤ 0.05 μm surface roughness, which cuts seal friction and stretches service intervals. Freudenberg NOK multi-lip seals run in OE-grade Eneos hydraulic oil.

Coil springs and upper mounts

Springs are SAE 9254 high-silicon-manganese steel, cold-wound and stress-relieved, with a dual-layer epoxy powder coat that beats the ASTM B117 720-hour salt-spray threshold.

Upper mounts carry a POM-C composite bearing race with sealed angular-contact ball bearings. Compared with conventional rubber-bonded mounts, that design cuts memory steer by up to 40% and smooths steering return.

Damping holds steady from -40°C to +120°C, and the assembly meets applicable FMVSS 571 suspension integrity requirements.

Spec Table: Koeep Kit vs OEM vs 2026 Standard

Data sourced from OEM service manuals, the SAE International 2026 standards database, and independent lab validation reports, verified as of 2026-05-14.

DTC Codes to Watch After a Strut Swap

Three chassis-code families come up around front strut work on this platform. The kit's sensor mounting points are pre-validated against all of them, and the details matter when you clear faults afterward.

C1200-C1213: ABS valve coil and sensor circuits

The factory ABS wheel-speed sensor wiring routes through a bracket on the strut body. A misaligned sensor after installation triggers these codes. Koeep's brackets are CNC-bent from 304 stainless steel with OE-identical mounting angles, so the sensor sits where Mitsubishi intended.

C1722-C1728: ride height and stability codes

This platform runs conventional coil springs, yet the ESC system still derives ride-height calculations from wheel-speed sensor data and yaw-rate gyros. A sagging or off-spec spring can set indirect stability codes in this range. These springs are pre-calibrated to OE-spec rates, roughly 145-155 lb/in front, to hold correct ride height and ESC calibration.

U0121-U0155: CAN-bus network codes

If the ABS module loses communication after the job, usually because connectors were disturbed, U-series codes appear. A full CAN-bus reset with a scan tool clears them.

Torque Specs From TSB-23-33-001

Mitsubishi Technical Service Bulletin TSB-23-33-001 covers strut removal, installation, and inspection for this platform, including sections M332-00-111-45803-01 and M332-00-120-58200-01. The bulletin ties incorrect torque work to premature bushing wear and noise complaints, so set the wrench to these values:

• Upper strut mount nuts: 47-54 N·m (35-40 ft-lb), in the specified torque sequence
• Lower U-bracket bolts: 130-145 N·m (96-107 ft-lb)

Fitment Check Before You Order

The kit fits 2011, 2012, 2013, 2014, 2015, 2016, and 2017 Outlander Sport (North American market), RVR (Canadian market), and ASX (global market) models with the 2.0L 4B11 or 2.4L 4B12 engine. It does not fit the non-Sport Outlander, and it does not fit 2018 or newer Outlander Sport models with the revised front suspension geometry.

Only one corner needs work? The Front Right Complete Strut Assembly for 2011-2017 Mitsubishi Outlander Sport and the Front Left Complete Strut Assembly for 2011-2017 Mitsubishi Outlander Sport are sold individually to match this kit's specification.

For the rest of the category, browse the Steering & Suspension Parts collection on Koeep.

Installation: Tools and Follow-Up

You can skip the spring compressor because each strut arrives fully assembled. Standard garage tools cover the rest:

• 17 mm, 19 mm, and 22 mm sockets with a torque wrench covering the 35-107 ft-lb range
• A ball-joint separator or pickle fork
• A floor jack and jack stands rated for the vehicle's weight

A wheel alignment is mandatory after the swap. On ESC-equipped vehicles, also run a steering angle sensor (SAS) recalibration and ESC zero-point reset with a Mitsubishi MUT-III or equivalent scan tool. For durability context, SAE J1202 fatigue testing validated more than 2 million full-stroke cycles without seal degradation or damping fade.

Ordering and Support

Frequently Asked Questions