26 Drivetrain parts are listed for the 2020 GMC Terrain, in 2 part types, covering both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2020 GMC Terrain, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. All 26 listed parts are CV Axle (23 parts) and Axle Shaft Seal (3 parts).
The 2020 GMC Terrain was sold with both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
6 brands supply drivetrain parts for the 2020 GMC Terrain, led by GM GENUINE (6 parts), GSP (6 parts) and TOP NOTCH (5 parts), plus 3 more brands. Quality grades include Standard Replacement and Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 GMC Terrain. 5 parts have it, including APWI GM8498 (CV Axle) and GM GENUINE 85103941 (CV Axle). Each part number opens a page with every vehicle that part fits.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 1.5L L4 Turbocharged | 291346 | 🇺🇸 US 🇨🇦 CA | GM Original Equipment | View on Amazon |
| GM GENUINE Fits: 1.5L L4 Turbocharged | 84519493 | 🇺🇸 US 🇨🇦 CA | Rear Left4WD | View on Amazon |
| GM GENUINE Fits: 1.5L L4 Turbocharged | 291347 | 🇺🇸 US 🇨🇦 CA | Rear Right4WD | View on Amazon |
This table covers the seals where an axle shaft exits the housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
3 Axle Shaft Seal parts are listed for the 2020 GMC Terrain, from GM GENUINE and ACDELCO.
This group includes ACDELCO 291346, GM GENUINE 84519493 and GM GENUINE 291347.
CV Axle
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP Fits: 1.5L L4 Turbocharged | NCV10164XD | 🇺🇸 US 🇨🇦 CA | Xtreme Duty CV AxleFor Extreme Operating Temperatures | View on Amazon |
| TOP NOTCH Fits: 1.5L L4 Turbocharged | TN20025XD | 🇺🇸 US 🇨🇦 CA | Xtreme Duty | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APWI Popular Fits: 1.5L L4 Turbocharged | GM8498 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| GM GENUINE Popular Fits: 1.5L L4 Turbocharged | 85103941 | 🇺🇸 US 🇨🇦 CA | Front Right4WD | View on Amazon |
| TOP NOTCH Popular Fits: 1.5L L4 Turbocharged | TN20195 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| TOP NOTCH Popular Fits: 1.5L L4 Turbocharged | TN20197 | 🇺🇸 US 🇨🇦 CA | Front RightFWD | View on Amazon |
| TOP NOTCH Popular Fits: 1.5L L4 Turbocharged | TN20025 | 🇺🇸 US 🇨🇦 CA | Front Right4WD | View on Amazon |
| APWI Fits: 1.5L L4 Turbocharged | GM8502 | 🇺🇸 US 🇨🇦 CA | Rear Right4WD | View on Amazon |
| APWI Fits: 1.5L L4 Turbocharged | GM8501 | 🇺🇸 US 🇨🇦 CA | Rear Left4WD | View on Amazon |
| GM GENUINE Fits: 1.5L L4 Turbocharged | 85103943 | 🇺🇸 US 🇨🇦 CA | Fits Front LeftFWD | View on Amazon |
| GM GENUINE Fits: 1.5L L4 Turbocharged | 84749538 | 🇺🇸 US 🇨🇦 CA | Rear Left4WD | View on Amazon |
| GM GENUINE Fits: 1.5L L4 Turbocharged | 85103940 | 🇺🇸 US 🇨🇦 CA | Fits Front RightFWD | View on Amazon |
| GSP Fits: 1.5L L4 Turbocharged | NCV10179 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| GSP Fits: 1.5L L4 Turbocharged | NCV10257 | 🇺🇸 US 🇨🇦 CA | Rear Right4WD | View on Amazon |
| GSP Fits: 1.5L L4 Turbocharged | NCV10188 | 🇺🇸 US 🇨🇦 CA | Front RightFWD | View on Amazon |
| GSP Fits: 1.5L L4 Turbocharged | NCV10115 | 🇺🇸 US 🇨🇦 CA | Rear Left4WD | View on Amazon |
| GSP Fits: 1.5L L4 Turbocharged | NCV10164 | 🇺🇸 US 🇨🇦 CA | Front Right4WD | View on Amazon |
| TOP NOTCH Fits: 1.5L L4 Turbocharged | TN20175 | 🇺🇸 US 🇨🇦 CA | Rear Left4WD | View on Amazon |
| TRAKMOTIVE Fits: 1.5L L4 Turbocharged | GM8449 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 1.5L L4 Turbocharged | GM8512 | 🇺🇸 US 🇨🇦 CA | Rear Left | View on Amazon |
| TRAKMOTIVE Fits: 1.5L L4 Turbocharged | GM86028 | 🇺🇸 US 🇨🇦 CA | Rear Right | View on Amazon |
| TRAKMOTIVE Fits: 1.5L L4 Turbocharged | GM86034 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
| TRAKMOTIVE Fits: 1.5L L4 Turbocharged | GM86033 | 🇺🇸 US 🇨🇦 CA | AAR Joint Design | View on Amazon |
This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes.
23 CV Axle parts are listed for the 2020 GMC Terrain, from GSP, TOP NOTCH, TRAKMOTIVE and 2 other brands. APWI GM8498 carries the "Popular" badge.
The Heavy Duty section lists 2 options from GSP and TOP NOTCH — rated for severe service. GSP NCV10164XD is listed in this group.
The Standard Replacement section lists 21 options from GSP, TRAKMOTIVE, GM GENUINE and 2 other brands — built to original-equipment specification. APWI GM8498 is listed in this group.
Buying Drivetrain Parts for a 2020 GMC Terrain
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Every drivetrain part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: CV Axle and Axle Shaft Seal .
Frequently Asked Questions
How many drivetrain parts fit the 2020 GMC Terrain?
Our catalog currently lists 26 drivetrain parts for the 2020 GMC Terrain across 2 subcategories and 6 brands, covering both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2020 GMC Terrain engines?
Yes. Every drivetrain part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of drivetrain problems on a 2020 GMC Terrain?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 GMC Terrain was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2020 GMC Terrain?
First match the engine — each row shows which engine(s) the part fits. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 GMC Terrain
Drivetrain Parts for Other GMC Terrain Years
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