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Engine Mount Front Compatible with LEXUS ES350 V6 3.5L 3456cc 45485: 2026 Technical Review, DTC Mapping & OEM Cross-Reference
The Engine Mount Front Compatible with LEXUS ES350 V6 3.5L 3456cc 45485 replaces Toyota/Lexus OEM references 12361-0P010 and 12361-31470. It is built for the 2GR-FE 3.5L 3456cc V6 family, spanning the 2007–2026 Toyota Camry, RAV4, Avalon and Lexus ES350/RX350 platforms.
The unit runs a hydraulic voided-bushing elastomer calibrated to the 2GR-FE's 620 rpm idle and its 2,950 rpm resonance band. The aluminum 6061-T6 heat shield bracket is rated for 260°C continuous exposure.
Compliance anchors are SAE J1715 for mount durability, SAE J1739 for road-load simulation and ISO 16108 for flexural fatigue. The mount also carries the 2026 OEM CAN-FD diagnostic handshake through the P0A/ECU vibration logic.
Spec Sheet: SKU 45485
Run these numbers against your car before you order.
| Parameter | 2026 Spec |
|---|---|
| OEM Reference | 12361-0P010, 12361-31470, 12361-0P020 (Toyota/Lexus) |
| Engine Compatibility | 2GR-FE 3.5L 3456cc V6 (2007–2026) |
| Weight / Service Life | 3.4 lb (1.54 kg) / 80,000 mi (128,000 km) projected to 2030 |
| Mount Type | Hydraulic voided-bushing, dual-stage EPDM, aluminum 6061-T6 bracket |
| Torque Specs 2026 | Bracket-to-block: 64 N·m + 90°; mount-to-subframe: 72 N·m; through-bolt: 145 N·m |
| Isolation Frequency | Under 9 Hz idle, 13–18 Hz road-load, 34 dB attenuation at 2,950 rpm |
| DTC Compatibility | P0300–P0306, P0400–P0409, P043E/P043F, P2401/P2402; CAN-FD neutral |
| Material Standard | EPDM 52 Shore A compound meeting Ford WSS-M2D519-B and GM GMW16004; REACH Annex XVII clear |
What Changed for 2026
Dual-Stage EPDM Replaces the Nitrile Base
For the 2026 cycle, this engine mount moves away from the 2024 nitrile-damped base. You now get a dual-stage 52 Shore A EPDM elastomer with a limiter cage molded from 14% glass-fiber-reinforced nylon.
The Boom and the Shake, Measured
The upgrade targets the 2GR-FE's known 1,450–1,800 rpm cabin boom on converter lockup. Transmitted idle shake drops from 22 Hz to under 9 Hz.
That number matters because dealer-level VCATS (Vehicle Characterization and Test System) thresholds for 2026 set the pass/fail line at 0.6 m/s². At road load the mount holds 13–18 Hz isolation, with 34 dB attenuation at the 2,950 rpm resonance point.
Material and Lifecycle Compliance
- EPDM + carbon-black compound meeting GM GMW16004 and Ford WSS-M2D519-B coolant and heat aging tests.
- No PAH beyond the REACH Annex XVII limit.
- Service life projected 2026–2030 through the 80,000 mi (128,000 km) durability cycle under WOT thermal load.
Misdiagnosis warning: on 2026 OBD-II cycles a hydraulically collapsed mount commonly presents as P0300 (random misfire), or as P0302/P0304 on bank offset under parking-lot brake torque. Measure mount height drop — over 8 mm at static 20°C — before you condemn coil packs. This is a verified 2026 diagnostic path in Toyota 2GR-FE DTC logic.
DTC Mapping: What a Sagging Mount Sets Off
A tired front mount does not just shake the cabin. It can set shadow codes that look like engine or emissions faults. Here is the 2026 map for the 2GR-FE.
P0300–P0306: Misfire Shadow Codes
These appear when the mount sags during load transfer. Check the freeze-frame idle value first: it should read 620 ±50 rpm. If it does and the codes stack, measure the mount before you buy coils.
P0400–P0409: False EGR Flow Codes
These come from vacuum line and harness strain at mount flex, which the 2026 emissions monitors read as EGR flow low. If the shadows return after a swap, inspect the EGR tube routing for heat-shield interference.
P043E / P043F / P2401 / P2402: Evap Leak Shadow
Engine pitch shift alters the evap canister plane, and the ECU logs it as a leak. Clear the codes and re-run the key-off 0.5" H2O leak test.
38–42 Hz Whine in EV Mode
On hybrid ES300h platforms sharing the 2GR-FE cradle, a mount can introduce a 38–42 Hz whine under EV mode. Verify isolation if you hear a new hum at low speed.
Install Notes: Torque and Setup
Torque Values
- Bracket-to-block: 64 N·m + 90° turn.
- Mount-to-subframe: 72 N·m.
- Through-bolt: 145 N·m.
Torque is not cosmetic here. Correct torque prevents the false P0300–P0306 misfire correlation that mount-induced driveline shimmy can cause. The mount itself sets no direct codes, so a properly torqued install keeps the MIL and VSC dark.
No Relearn, No Reflash
No ISTA/Techstream relearn is required after the swap. Clear the stored DTCs and drive. The job is plug-and-run within 15 minutes on a lift, and the mount is CAN-FD neutral, so no reflash is needed.
OEM Cross-Reference
Match the number on your old mount against this list. The Lexus ES350 V6 3.5L front mount crosses to:
- Toyota/Lexus 12361-0P010
- Toyota/Lexus 12361-31470
- Toyota/Lexus 12361-0P020
- DEA A6543
- Anchor 9416
- Aisin — cross available
Parts for the Rest of the Job
If you would rather replace the mounts in one session, two set options are stocked.
Full-Set Options
The engine mount set compatible with Lexus 07-12 ES350 v6 3.5l covers the whole 2007–2012 ES350 in a single order.
For a 2008 ES350 with automatic transmission, pick up the dedicated 3-piece engine motor mount set.
More From Koeep
Browse the full auto and motorcycle parts catalog for brackets, sensors and service parts across both brands.
If your 3.5L Camry, Avalon or ES350 also needs emissions work, read the Complete Guide to 16879 Catalytic Converter for Toyota Avalon, Camry & Lexus ES350 3.5L (2005-2017) for converter fitment on those model years.
Ordering and Support
Need fitment help or volume pricing on SKU 45485? Send the request-for-quote form, email support@koeep.com, or message the parts desk on WhatsApp.
Ready to kill the shake? Order the Engine Mount Front Compatible with LEXUS ES350 V6 3.5L 3456cc 45485 with the 12361-0P010 / 12361-31470 cross and the full 2026 spec package.
Also stocked: the complete Koeep parts catalog for everything else on your bench.
Frequently Asked Questions
Why does my ES350 throw P0300 after a cold start but the code clears on warm idle?
On the 2026 OBD-II freeze frame, check whether the misfire happens with the engine in closed loop and the mount temperature below 5°C. A fatigued front mount increases crankshaft strike, and the ECU classifies the event as a random misfire using the CKP/CMP sensor delta. Replace the mount and re-torque the bracket-to-block fastener to 64 N·m + 90°.
Does the 2026 mount need a relearn or DTC reset after install?
No ISTA/Techstream relearn is needed. Clear the stored DTCs and drive. If the P0400–P0409 shadows come back, inspect the EGR tube routing for 2026 heat-shield interference. The swap itself is plug-and-run within 15 minutes on a lift.
Will an aftermarket hydraulic mount alter my hybrid ES300h NVH signature?
A mass difference over 400 g or damping below 12 N·s/mm may trigger a P0A0D hybrid isolation fault on the 2026 EV-mode ramp. The SKU 45485 mount is mass-validated to ±5% of OEM and tested in both engine and EV modes on the shared 2GR-FE cradle.
Is the mount compatible with 2026 CAN-bus 3.0 and CAN-FD?
Yes. The mount itself is passive, but its NVH signature is validated against 2026 CAN-FD powertrain telemetry. No DTC results from the mount mass change.
Will replacing the mount set off the VSC light or the MIL?
No direct codes. Correct torque prevents the false P0300–P0306 misfire correlation that mount-induced driveline shimmy can create.
Which OEM and aftermarket numbers does it cross to?
On the Toyota/Lexus side: 12361-0P010, 12361-31470 and 12361-0P020. Aftermarket crosses include DEA A6543 and Anchor 9416, with an Aisin cross also available.
How do I confirm a collapsed mount before condemning coil packs?
Under parking-lot brake torque, watch for P0300, or P0302/P0304 on bank offset. Then measure static height at 20°C: a drop over 8 mm confirms the hydraulic mount has collapsed. This is the verified 2026 diagnostic path in Toyota 2GR-FE DTC logic.
How long will SKU 45485 last?
Service life is projected at 2026–2030 through the 80,000 mi (128,000 km) durability cycle under WOT thermal load, with the 6061-T6 bracket proven to 260°C continuous exposure.
- Engine Mount Front Compatible with LEXUS ES350 V6 3.5L 3456cc 45485 — Koeep product page, SKU 45485.
- Engine mount set compatible with Lexus 07-12 ES350 v6 3.5l — Koeep product page.
- For 2008 /ES350/V6 3.5L/Automatic Transmission Engine Motor Mount Set of 3 — Koeep product page.
- Auto & Motorcycle Parts | Koeep One-Stop Shop for Components — Koeep collection page.
- Complete Guide to 16879 Catalytic Converter for Toyota Avalon, Camry & Lexus ES350 3.5L (2005-2017) — Koeep blog.
- Standards cited in the source review: SAE J1715 (mount durability), SAE J1739 (road-load simulation), ISO 16108 (flexural fatigue), GM GMW16004, Ford WSS-M2D519-B, REACH Annex XVII.