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1978 Mercedes Benz 300CD Base Coupe 123.150 L5 3.0L

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Your Vehicle 1978 Mercedes Benz 300CD Base Coupe 123.150 L5 3.0L
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1978 Mercedes Benz 300CD Base Coupe 123.150 L5 3.0L Engine Parts & Accessories

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Alternator Pulley

ES#1611980 - 0011553215 - Alternator Pulley - Transfers power from the accessory belt to the alternator rotor - Genuine Mercedes Benz - Mercedes Benz

Transfers power from the accessory belt to the alternator rotor Due To Multiple VIN Splits, Please Confirm Fitment Before Ordering

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1611980
Mfg#:
0011553215
Back Ordered
6% off MSRP

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

$48.99

This product was last offered at the strikethrough price on
08-05-2026

$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80°C

ES#8439 - 6172001815 - Thermostat - 80C - Includes new o-rings - Mahle-Behr - Mercedes Benz

Includes new o-rings

Brand:
Mahle-Behr - Corporate Logo
ES#:
8439
Mfg#:
6172001815
Ships in 1 day
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing Washer - Priced Each

ES#1619446 - 007603014104 - Sealing Washer - Priced Each - 14x20x1.5 - Genuine Mercedes Benz - Mercedes Benz

14x20x1.5 Used In Various Locations On Multiple Mercedes-Benz Models - Please Verify Fitment Prior To Ordering

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1619446
Mfg#:
007603014104
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Pan - Bottom

ES#2747899 - 1150100428 - Engine Oil Pan - Bottom - Bolted to the bottom of the engine block - Febi - Mercedes Benz

Bolted to the bottom of the engine block 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2747899
Mfg#:
1150100428
Ships on Nov 2, 2026
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Idler Pulley

ES#4907981 - 1161300460 - A/C Idler Pulley - Idler pulley for cars with air pump delete - Hamburg Tech - Mercedes Benz

Idler pulley for cars with air pump delete

Brand:
Hamburg Tech - Corporate Logo
ES#:
4907981
Mfg#:
1161300460
Ships in 1 Business Day
$38.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Fan Blade

ES#2709064 - 1102000323 - Cooling Fan Blade - Does not include new fan clutch - URO - Mercedes Benz

Does not include new fan clutch 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2709064
Mfg#:
1102000323
Back Ordered
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

In-Line Fuel Filter - Priced Each

ES#8054 - 0014777901 - In-Line Fuel Filter - Priced Each - OE style with brass inserts - Hebmuller - Mercedes Benz

OE style with brass inserts

Brand:
Hebmuller - Corporate Logo
ES#:
8054
Mfg#:
0014777901
Back Ordered
$11.99 USD
Free Shipping
on orders $49 and up

Fuel Hose

ES#2712673 - 6150700632 - Fuel Hose - 3x7mm Looping Return Line - 200mm - Febi - Mercedes Benz

3x7mm Looping Return Line - 200mm 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2712673
Mfg#:
6150700632
Ships in 3 Business Days
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump Repair Kit

ES#2865057 - 0005864043 - Vacuum Pump Repair Kit - Includes Two (2) Valves - Febi - Mercedes Benz

Includes Two (2) Valves 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Up To Engine 108987

Brand:
Febi - Corporate Logo
ES#:
2865057
Mfg#:
0005864043
Ships on Nov 2, 2026
ON SALE! SAVE 48%
$16.99

This product was last offered at the strikethrough price on
05-02-2026

$8.91 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Guide Rail - Priced Each

ES#1817674 - 6150501416 - Timing Chain Guide Rail - Priced Each - Upper Left Guide - Genuine Mercedes Benz - Mercedes Benz

Upper Left Guide

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1817674
Mfg#:
6150501416
Ships in 3 Business Days
6% off MSRP

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

$36.00

This product was last offered at the strikethrough price on
08-05-2026

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Strainer

ES#1654295 - 1244700106 - Fuel Strainer - Includes new sealing o-ring - Genuine Mercedes Benz - Mercedes Benz

Includes new sealing o-ring

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1654295
Mfg#:
1244700106
Ships on Sep 11, 2026
Auto Notify
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Oil Pan Gasket

ES#2739911 - 6160140122 - Lower Oil Pan Gasket - Seals lower oil pan to upper oil pan - Victor Reinz - Mercedes Benz

Seals lower oil pan to upper oil pan

Brand:
Victor Reinz - Corporate Logo
ES#:
2739911
Mfg#:
6160140122
Ships in 3 Business Days
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80°C

ES#1818511 - 6172001815 - Thermostat - 80C - Includes new o-rings - Genuine Mercedes Benz - Mercedes Benz

Includes new o-rings

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1818511
Mfg#:
6172001815
Ships in 3 Business Days
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
08-05-2026

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

Coolant Temperature Sensor

ES#1618356 - 0055421017 - Coolant Temperature Sensor - One (1) Pole Terminal - Genuine Mercedes Benz - Mercedes Benz

One (1) Pole Terminal

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1618356
Mfg#:
0055421017
Ships in 3 Business Days
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
08-05-2026

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

Engine Air Filter - Priced Each

ES#3676652 - 0020940404 - Engine Air Filter - Priced Each - 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#:
3676652
Mfg#:
0020940404
Ships on Aug 27, 2026
$46.99

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

$31.99 USD
Free Shipping
on orders $49 and up
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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