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2012 Mercedes Benz R350 Base Wagon 251.157 V6 3.5L

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Your Vehicle 2012 Mercedes Benz R350 Base Wagon 251.157 V6 3.5L
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2012 Mercedes Benz R350 Base Wagon 251.157 V6 3.5L Engine Parts & Accessories

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Spark Plug - Priced Each

ES#4620341 - 0041598103 - Spark Plug - Priced Each - Replacement spark plug for your Mercedes-Benz engine - Bosch - Mercedes Benz

Replacement spark plug for your Mercedes-Benz engine 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
4620341
Mfg#:
0041598103
In Stock
$21.99

This product was last offered at the strikethrough price on
02-25-2026

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

M276 Liqui Moly Molygen Oil Service Kit (5w-40) - With ECS Magnetic Drain Plug

ES#4642877 - 276180000KT2 - M276 Liqui Moly Molygen Oil Service Kit (5w-40) - With ECS Magnetic Drain Plug - Includes Hengst filter and Liqui Moly Molygen New Generation 229.5 Spec oil - Assembled By ECS - Mercedes Benz

Includes Hengst filter and Liqui Moly Molygen New Generation 229.5 Spec oil 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4642877
Mfg#:
276180000KT2
Ships on Oct 12, 2026
Auto Notify
$135.99

This product was last offered at the strikethrough price on
05-15-2026

$125.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Weistec Mercedes-Benz M276 DE 35 NA W.2 ECU Tune

ES#4732924 - 05-276-00216-9KT - Weistec Mercedes-Benz M276 DE 35 NA W.2 ECU Tune - Increase of +38 Horsepower, and +32 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance high-flow exhausts! - Weistec - Mercedes Benz

Increase of +38 Horsepower, and +32 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance high-flow exhausts!

Brand:
Weistec - Corporate Logo
ES#:
4732924
Mfg#:
05-276-00216-9KT
In Stock at Vendor
$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Weistec Mercedes-Benz M276 DE 35 NA W.1 ECU Tune

ES#4732923 - 05-276-00215-8KT - Weistec Mercedes-Benz M276 DE 35 NA W.1 ECU Tune - Increase of +29 Horsepower, and +23 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - Mercedes Benz

Increase of +29 Horsepower, and +23 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!

Brand:
Weistec - Corporate Logo
ES#:
4732923
Mfg#:
05-276-00215-8KT
In Stock at Vendor
$1299.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Service Kit

ES#4464214 - 2762001301KT - Water Pump Service Kit - Includes everything needed to replace your water pump. Price includes a $46.15 refundable core charge. - Genuine Mercedes Benz - Mercedes Benz

Includes everything needed to replace your water pump. Price includes a $46.15 refundable core charge. For vehicles with engine number from 30 022369 with build date from 06/04/11.

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
4464214
Mfg#:
2762001301KT
Back Ordered
$1234.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

12.0" 3.75mm (5/32") ID Black Silicone Vacuum Hose

ES#4338188 - 2101 - 12.0" 3.75mm (5/32") ID Black Silicone Vacuum Hose - ECS - Audi BMW Volkswagen Mercedes Benz

10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4338188
Mfg#:
2101
In Stock
ON SALE! SAVE 25%
$33.99

This product was last offered at the strikethrough price on
06-13-2026

$25.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Filter Kit - Priced Each

ES#2090579 - 2761800009 - Engine Oil Filter Kit - Priced Each - Includes all o-rings needed for installation. For M276 Engine applications. Some M278 Engines has mixed installation of the filter elements, check your filter prior to ordering. - Genuine Mercedes Benz - Mercedes Benz

Includes all o-rings needed for installation. For M276 Engine applications. Some M278 Engines has mixed installation of the filter elements, check your filter prior to ordering.

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
2090579
Mfg#:
2761800009
In Stock
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$31.00

This product was last offered at the strikethrough price on
02-19-2026

$28.99 USD
Free Shipping
on orders $49 and up

Spark Plug - Priced Each

ES#3133920 - 0041598103 - Spark Plug - Priced Each - Replacement spark plug for your Mercedes-Benz engine - Genuine Mercedes Benz - Mercedes Benz

Replacement spark plug for your Mercedes-Benz engine

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
3133920
Mfg#:
0041598103
Ships in 1 Business Day
5% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$40.00

This product was last offered at the strikethrough price on
07-25-2026

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Air Filter

ES#3693454 - 276094000490 - Engine Air Filter - Filters the air before it enters your engine - Genuine Mercedes Benz - Mercedes Benz

Filters the air before it enters your engine

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
3693454
Mfg#:
276094000490
In Stock
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$33.99

This product was last offered at the strikethrough price on
07-27-2026

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Air Filter

ES#3610496 - 2760940004 - Engine Air Filter - Filters the air before it enters your engine - Hengst - Mercedes Benz
ECS Tuning recommends this product.

Filters the air before it enters your engine 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
3610496
Mfg#:
2760940004
In Stock
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Crankshaft Pulley

ES#3086219 - 2720300803 - Engine Crankshaft Pulley - Replacement of failed pulley instantly restores proper timing mark position and control of crank vibration - Corteco - Mercedes Benz

Replacement of failed pulley instantly restores proper timing mark position and control of crank vibration

Brand:
Corteco - Corporate Logo
ES#:
3086219
Mfg#:
2720300803
Ships in 1 Business Day
$225.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor

ES#2608984 - 2730940948 - Mass Air Flow Sensor - Measures the amount of air entering your engine - Bosch - Mercedes Benz

Measures the amount of air entering your engine 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2608984
Mfg#:
2730940948
In Stock at Vendor
$128.99

This product was last offered at the strikethrough price on
05-07-2026

$124.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Upper Timing Covers Reseal Kit - Without Camshaft Adjuster Magnets

ES#5456737 - M157M278RSKT1 - Front Upper Timing Covers Reseal Kit - Without Camshaft Adjuster Magnets - Cure the notorious M157, M278, and M276 oil leak, save your alternator, and do the job right with 100% Genuine Mercedes Benz hardware and sealant in one click. - Genuine Mercedes Benz - Mercedes Benz

Cure the notorious M157, M278, and M276 oil leak, save your alternator, and do the job right with 100% Genuine Mercedes Benz hardware and sealant in one click.

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
5456737
Mfg#:
M157M278RSKT1
Ships in 2 Business Days
$279.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Anti-Freeze / Coolant - 1 Gallon G48

ES#4440225 - Q6880187 - Anti-Freeze / Coolant - 1 Gallon G48 - Zerex G-48 Coolant - Genuine Mercedes Benz - Mercedes Benz

Zerex G-48 Coolant Mercedes-branded coolant is no longer available. This Zerex-branded coolant is the same coolant that is sold at the Mercedes dealer parts department.

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
4440225
Mfg#:
Q6880187
In Stock
ON SALE! SAVE 22%
$33.99

This product was last offered at the strikethrough price on
02-19-2026

$26.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

M276 Valve Cover Reseal Kit

ES#5456807 - M276RSKT - M276 Valve Cover Reseal Kit - Reseal your leaking M276 valve covers the right way with genuine liquid sealant, new aluminum hardware, and high pressure fuel pump seal. - Genuine Mercedes Benz - Mercedes Benz

Reseal your leaking M276 valve covers the right way with genuine liquid sealant, new aluminum hardware, and high pressure fuel pump seal.

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
5456807
Mfg#:
M276RSKT
Ships in 3 Business Days
$390.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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