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Your Vehicle 1978 Mercedes Benz 300SD Base Sedan 116.120 L5 3.0L

1978 Mercedes Benz 300SD Base Sedan 116.120 L5 3.0L Engine Parts & Accessories

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ES#3514662 - 2002KT - Super Diesel Additive - 300mL - Reduces wear of fuel pump while improving engine performance and emissions - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz Porsche

Reduces wear of fuel pump while improving engine performance and emissions affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship

Brand:
Liqui-Moly - Corporate Logo
ES#:
3514662
Mfg#:
2002KT
In Stock
ON SALE! SAVE 34%
$12.39

This product was last offered at the strikethrough price on
06-08-2026

$8.21 USD
Free Shipping
on orders $49 and up
ES#3514690 - 2032KT - Pro-Line Diesel Cleaner - 500mL - Cleans the injection system and combustion chamber while increasing cetane number - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz Porsche

Cleans the injection system and combustion chamber while increasing cetane number affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3514690
Mfg#:
2032KT
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
ES#3411516 - 2005lmKT - Diesel Purge - 500mL - Add to your fuel tank to keep your car operating flawlessly and as efficiently as possible - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz Porsche

Add to your fuel tank to keep your car operating flawlessly and as efficiently as possible affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Ground ship only in the contiguous U.S.

Brand:
Liqui-Moly - Corporate Logo
ES#:
3411516
Mfg#:
2005LMKT
In Stock
$12.85 USD
Free Shipping
on orders $49 and up
ES#4338188 - 2101 - 12.0" 3.75mm (5/32") ID Black Silicone Vacuum Hose - ECS - Audi BMW Volkswagen Mercedes Benz

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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
ES#4440225 - Q6880187 - Anti-Freeze / Coolant - 1 Gallon - Zerex G-48 Coolant - Genuine Mercedes Benz - Mercedes Benz

Zerex G-48 Coolant affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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
7% off MSRP

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

$29.99

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

$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3999012 - 20254 - Truck Series Diesel Performance and Protectant - 500ml / 16.9oz - Boost your cetane/performance and keep your injection system protected from today's pump fuel - Treats up to 25 Gallons of Diesel - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz Porsche

Boost your cetane/performance and keep your injection system protected from today's pump fuel - Treats up to 25 Gallons of Diesel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3999012
Mfg#:
20254
In Stock
35% off MSRP

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

$18.95

This product was last offered at the strikethrough price on
06-14-2026

$12.29 USD
Free Shipping
on orders $49 and up
ES#10182 - 1232413013 - Engine Mount - Priced Each - Secures the engine to the subframe - Corteco - Mercedes Benz

Secures the engine to the subframe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Corteco - Corporate Logo
ES#:
10182
Mfg#:
1232413013
In Stock at Vendor
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Price includes a $102.02 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
55 Amp - For Bosch System

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
2678315
Mfg#:
007154450280KT
Back Ordered
$520.99

This product was last offered at the strikethrough price on
01-06-2026

$458.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4845609 - 0002301365 - Vacuum Pump - Brand New Unit - No Core Charge - URO - Mercedes Benz

Brand New Unit - No Core Charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4845609
Mfg#:
0002301365
In Stock
$337.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2703068 - 0031510701KT1 - Remanufactured Starter - Price includes a $62.40 refundable core charge - Bosch - Mercedes Benz

Price includes a $62.40 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2703068
Mfg#:
0031510701KT1
Ships in 1 day
$310.99

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

$303.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4920856 - 1245800010 - Ceramic Fuse Kit - Assortment of ceramic fuses for your vehicle - Hella - Mercedes Benz

Assortment of ceramic fuses for your vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hella - Corporate Logo
ES#:
4920856
Mfg#:
1245800010
In Stock at Vendor
$5.99 USD
Free Shipping
on orders $49 and up

Price includes a $65.00 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
55 Amp - For Bosch System

Brand:
Bosch - Corporate Logo
ES#:
4370474
Mfg#:
007154450280KT1
Back Ordered
$256.99

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

$250.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1642011 - 1162400418 - Transmission Mount - Secures the transmission to the crossmember - Genuine Mercedes Benz - Mercedes Benz

Secures the transmission to the crossmember affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1642011
Mfg#:
1162400418
Ships in 5 Business Days
7% off MSRP

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

$134.00

This product was last offered at the strikethrough price on
01-06-2026

$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2681864 - 110200172080KT - Remanufactured Water Pump - Price includes a $9.50 refundable core charge - Genuine Mercedes Benz - Mercedes Benz

Price includes a $9.50 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
2681864
Mfg#:
110200172080KT
Ships in 3 Business Days
$269.99

This product was last offered at the strikethrough price on
01-06-2026

$232.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4758633 - 0008356964 - Auxiliary Water Pump - Restore heating / cooling with this new unit - URO - Mercedes Benz

Restore heating / cooling with this new unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4758633
Mfg#:
0008356964
Ships in 1 Business Day
$207.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1612554 - 0015408697 - Changeover Valve - Secondary Air Injection Solenoid - Vapor Canister Purge Solenoid. Used in various locations on your Mercedes-Benz. - Genuine Mercedes Benz - Mercedes Benz

Secondary Air Injection Solenoid - Vapor Canister Purge Solenoid. Used in various locations on your Mercedes-Benz. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Air Pump Change-Over Valve

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1612554
Mfg#:
0015408697
Ships in 3 Business Days
7% off MSRP

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

$218.00

This product was last offered at the strikethrough price on
01-06-2026

$202.99 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.

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