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3PCS Transmission Mount Set for 2010–2011 Cadillac SRX 2.8L: 2026 Specs, OEM Cross-Reference & DTC Compatibility
Why the 2010–2011 SRX 2.8L Is Hard on Transmission Mounts
The 2010–2011 Cadillac SRX 2.8L Turbo runs the GM LAU V6, and it routes up to 295 lb-ft of torque at just 2,000 rpm through an Aisin Warner AF40 six-speed electronically controlled automatic. Peak twist arriving that low in the rev range is what kills mounts: elastomer creep and clamp-load stability are the dominant failure modes at every interface on this platform.
The fix is not one mount — it is the trio. The 3PCS Transmission Mount Set replaces the front, driver-side, and rear mounts together as a torque-axis-matched set. Swap all three in one job and you restore powertrain alignment, suppress NVH, and clear the mechanical side of the P0700-series diagnostic path.
- Fits: 2010–2011 Cadillac SRX 2.8L Turbo V6 (LAU), FWD and AWD
- Transmission: Aisin Warner AF40 six-speed automatic
- Replaces OEM: 13227769 (front) • 20847583 (driver-side) • 13228306 (rear)
- Interchange: A5536 • MK5536 • EM-3197 • 5536 • 5538 • 5675
- Elastomer: EPDM / natural-rubber blend, 55–70 Shore A
- Fasteners and sleeves: zinc-nickel coated steel, ISO 4042
What Each Mount Does
Three positions, three different jobs. Knowing which mount carries which load tells you where your symptom comes from before you even lift the car.
Front mount — OEM 13227769
Absorbs torque-reaction pitch during tip-in and carries the primary NVH path under hard 1-2 upshifts. Sharp shifts plus cabin shake point here first.
Driver-side (left) mount — OEM 20847583
Carries roll-axis mass and isolates the transaxle side of the powertrain cradle. Wear here usually shows up as idle vibration that changes once the shifter drops into gear.
Rear mount — OEM 13228306
The highest-failure position on AF40-equipped SRX units. It controls fore-aft thrust and collapses first under repeated Drive-Reverse engagement — the daily parking-lot shuffle adds up.
Replace all three, not one. An aged mount left next to fresh rubber takes the remaining wear and shortens its own life. The rear (13228306) usually goes first, but the other two on the same 80,000–120,000-mile service window are rarely far behind.
Material and Coating: What 2026 Compliance Actually Means
Each mount pairs an engineered EPDM / natural-rubber elastomer body with a lightweight alloy steel housing. Durometer runs 55–70 Shore A, position-specific, classified under SAE J200 and ASTM D2000 — the industry call-outs for hardness, fluid resistance, and compression-set behavior.
Sleeves and fasteners are zinc-nickel coated steel under ISO 4042, with SAE J2329-grade corrosion resistance for 2026 requirements. On hardware that lives under the vehicle for a decade, the coating is what keeps the bolts turning at the next service.
This matches the wider market: the engine-and-transmission mount fastener segment is projected at USD 940.9M in 2026, roughly 3.4% CAGR through 2036, driven by mixed-material mounts with higher torque density and tighter vibration control.
2026 Technical Specification Matrix
Fitment, materials, coatings, and service life — the full data backbone for this set in one table.
| Parameter | Specification | 2026 Compliance / Note |
|---|---|---|
| Vehicle Application | 2010–2011 Cadillac SRX 2.8L Turbo V6 (LAU) | Aisin Warner AF40 six-speed automatic |
| Set Coverage | 3-piece: front + driver-side + rear | Full torque-axis mount replacement |
| OEM Numbers | 13228306 • 20847583 • 13227769 | A5536 / MK5536 / EM-3197 / 5536 / 5538 / 5675 |
| Transmission | Aisin AF40, six-speed, electronically controlled | 295 lb-ft @ 2,000 rpm; 300 hp @ 5,500 rpm |
| Load Rating | Tuned for the AF40's 295 lb-ft peak output | Accounts for 4,277–4,442 lb curb-weight mass |
| Elastomer Type | Engineered EPDM / NR blend | SAE J200 / ASTM D2000 classification |
| Durometer (Hardness) | 55–70 Shore A (position-specific) | ASTM D2000 hardness call-out |
| Fastener / Sleeve Coating | Zinc-nickel coated steel | ISO 4042 / SAE J2329 corrosion resistance |
| Projected Service Life | 80,000–120,000 miles | 2026–2030 lifecycle window |
DTC Compatibility: What a Bad Mount Does and Does Not Trigger
These are passive elastomer mounts with zero electronics. They cannot store or throw a code on their own, and they are not CAN-bus 3.0 dependent — they work with the vehicle's legacy HS-CAN architecture as-is.
What they can do is set codes indirectly. Driveline shock and wiring-harness strain at the transmission case can mask or trigger:
- P0700 — Transmission Control System Malfunction
- P0613 — TCM Processor
- U0101 — Lost Communication with TCM
- P1870 — Transmission Component Slipping
Scan the full P0700–P0799 transmission control range before condemning the transmission. Intermittent codes with clean AF40 fluid point at driveline shock from a tired mount — not the valve body.
Failure Symptoms and How to Verify a Collapse
- Clunk shifting into Reverse or Drive: the signature of a collapsed rear mount (13228306). Once the elastomer tears, the transaxle shifts under load.
- Harsh 1-2 upshifts plus idle vibration: a high-confidence NVH indicator of collapse at the front (13227769) or driver-side (20847583) positions.
- Intermittent TCM codes: P0700, P0613, U0101, or P1870 with no fluid or valve-body cause behind them.
The pry-bar check
With the vehicle safely lifted, pry-test vertical and fore-aft free play at each mount while an assistant power-brakes briefly in D and R. Visible elastomer cracking, metal-to-metal contact, or more than about 10 mm of deflection means the mount is finished. After installing the new set, re-torque the fasteners to the OEM cradle spec.
Related Parts for the Same Platform
Only one position failed and you want a single-part fix? The Auto Transmission Mount for Buick Regal and Cadillac SRX 2010–2011 (3201) covers the individual-mount route — a lone new mount just ages faster next to worn ones.
Running a 3.0L or 3.6L SRX instead? Those variants (LF1 and LFX) use different mount part numbers, so order the motor and transmission mount for 2010–2016 Cadillac SRX FWD automatic 3.0L / 3.6L instead of this set.
- Browse the full Transmission & Drivetrain catalog for mounts, axles, and driveline components.
And once the driveline is quiet, spend where your hands go: the carbon fiber and suede leather steering wheel cover for the Cadillac XT5 is one of our most-read Cadillac interior upgrades.
Three Mounts. Three OEM Numbers. One Order.
Front (13227769), driver-side (20847583), and rear (13228306) — replaced as a matched trio with SAE J200 / ASTM D2000 elastomer and ISO 4042 zinc-nickel fasteners.
Order the 3PCS Transmission Mount SetFitment or bulk-pricing questions? Use the request-for-quote form, email support@koeep.com, or message us on WhatsApp.
Frequently Asked Questions
Will this set fit both FWD and AWD 2010–2011 SRX 2.8L models?
Yes. The mounts are matched to the Aisin AF40 six-speed automatic mounting pattern in both FWD and AWD versions of the 2.8L Turbo LAU V6.
Will it fit my SRX with the 3.0L or 3.6L V6?
No. The 3.0L (LF1) and 3.6L (LFX) variants use different mount part numbers. This set is specific to the 2.8L Turbo LAU with the Aisin AF40 automatic — order the dedicated 3.0L / 3.6L mount listing for those engines.
Which mount fails first on this platform?
The rear mount (13228306). It is the highest-failure position on AF40-equipped SRX units because repeated Drive-Reverse engagement collapses it first. A sharp clunk on D-R shifts is the classic sign.
Which DTCs should I check before condemning the transmission?
Scan the P0700–P0799 range, then check P0613 (TCM processor), U0101 (lost communication with TCM), and P1870 (component slipping). Collapsed mounts do not store codes, but the shock they cause can trigger these intermittently through harness strain.
How do I check for a collapsed mount?
Lift the vehicle safely and pry-test vertical and fore-aft free play at each mount while an assistant power-brakes briefly in D and R. Elastomer cracking, metal-to-metal contact, or more than about 10 mm of deflection means replacement.
How long will the set last?
Projected service life is 80,000–120,000 miles, covering the 2026–2030 lifecycle window on 2010–2011 SRX 2.8L Turbo applications.
Why replace all three mounts at once?
Because the trio works as a matched torque-axis set. A lone new mount next to aged ones inherits the load and wears early — the clunk usually comes back sooner. Order the complete 3PCS set and do the job once.
- 3PCS Transmission Mount Set Fit 2010-2011 Cadillac SRX 2.8L for Automatic Trans — Koeep product page
- Auto Transmission Mount Buick Regal Cadillac SRX 2010-2011 3201 — Koeep product page
- Fits 2010-2016 Cadillac SRX FWD AUTO 3.0L 3.6L Motor&Transmission Mount — Koeep product page
- Transmission & Drivetrain Parts | Koeep Auto & Motorcycle Components
- Premium Carbon Fiber & Suede Leather Steering Wheel Cover for Cadillac XT5: Ultimate Style and Protection
- SAE J200 / ASTM D2000 elastomer classification standards — hardness, fluid resistance, compression set
- ISO 4042 zinc-nickel fastener coating standard and SAE J2329 corrosion resistance
- Engine-and-transmission mount fastener segment projection — USD 940.9M in 2026, ~3.4% CAGR to 2036