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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 Most Popular Parts

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Auxiliary Water Pump

ES#4758633 - 0008356964 - Auxiliary Water Pump - Restore heating / cooling with this new unit - URO - Mercedes Benz

Restore heating / cooling with this new unit 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4758633
Mfg#:
0008356964
Ships in 2 Business Days
$207.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

41mm Festoon Bulb - Priced Each

ES#2855373 - 63217160912 - 41mm Festoon Bulb - Priced Each - 12 Volt - 10 Watt - Osram Sylvania - BMW Mercedes Benz Porsche

12 Volt - 10 Watt

Brand:
Osram Sylvania - Corporate Logo
ES#:
2855373
Mfg#:
63217160912
In Stock
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Power Antenna Kit - Chrome Mast

ES#4146982 - AUTA2050 - Power Antenna Kit - Chrome Mast - Includes mounting hardware and electrical connectors. For vehicles with 0-30 degree body slopes. - URO - Audi Volkswagen Mercedes Benz Porsche

Includes mounting hardware and electrical connectors. For vehicles with 0-30 degree body slopes. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4146982
Mfg#:
AUTA2050
Ships in 2 Business Days
$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Changeover Valve

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. Transmission Change-Over Valve

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1612554
Mfg#:
0015408697
Ships in 4 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
08-04-2026

$202.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Touring High Tech Diesel Engine Oil (15w-40) - 5 Liter

ES#3448116 - 2044 - Touring High Tech Diesel Engine Oil (15w-40) - 5 Liter - All-year oil designed especially for diesel engines - Liqui-Moly - Mercedes Benz

All-year oil designed especially for diesel engines 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3448116
Mfg#:
2044
In Stock at Vendor
1% off MSRP

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

$67.99

This product was last offered at the strikethrough price on
07-14-2026

$67.49 USD
Free Shipping

Upper Oil Cooler Hose

ES#2718156 - 6171871582 - Upper Oil Cooler Hose - From oil filter housing to oil cooler - Cohline - Mercedes Benz

From oil filter housing to oil cooler From Engine Number OM617.912 12 067786

Brand:
Cohline - Corporate Logo
ES#:
2718156
Mfg#:
6171871582
Ships in 1-2 days
$200.93 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Brake Master Cylinder Reservoir

ES#5396388 - 0014315302 - Brake Master Cylinder Reservoir - Includes cap & sensor - Hamburg Tech - Mercedes Benz

Includes cap & sensor

Brand:
Hamburg Tech - Corporate Logo
ES#:
5396388
Mfg#:
0014315302
Ships in 2 Business Days
$197.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

H&R DRA Series Wheel Spacer - 30mm (1 Pair)

ES#377 - 6055665 - H&R DRA Series Wheel Spacer - 30mm (1 Pair) - Get a new set of spacers and widen the stance of your vehicle - H&R - Mercedes Benz

Get a new set of spacers and widen the stance of your vehicle 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
377
Mfg#:
6055665
Ships on Aug 27, 2026
10% off MSRP

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

$219.99

This product was last offered at the strikethrough price on
07-01-2026

$197.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Shock Absorber Hardware Kit - Priced Each

ES#4830415 - 11699000990KT - Front Shock Absorber Hardware Kit - Priced Each - Includes all necessary hardware and bushings for shock installation - Genuine Mercedes Benz - Mercedes Benz

Includes all necessary hardware and bushings for shock installation

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
4830415
Mfg#:
11699000990KT
Ships in 4 Business Days
$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Diesel System Cleaner - 500ml / 16.9oz

ES#3999018 - 20252 - Complete Diesel System Cleaner - 500ml / 16.9oz - Don't let today's pump fuel kill your diesel's injection system - Treats up to 25 Gallons of Diesel - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz Porsche

Don't let today's pump fuel kill your diesel's injection system - Treats up to 25 Gallons of Diesel 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3999018
Mfg#:
20252
In Stock at Vendor
15% off MSRP

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

$23.99

This product was last offered at the strikethrough price on
08-04-2026

$20.31 USD
Free Shipping
on orders $49 and up

Steering Damper (Shock)

ES#2723109 - 18-002461 - Steering Damper (Shock) - Bilstein - Mercedes Benz

2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
2723109
Mfg#:
18-002461
Ships in 1-2 days
$59.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Valve

ES#2524094 - 0029975336 - Vacuum Valve - 3/2 Way Valve - MTC - Mercedes Benz

3/2 Way Valve

Brand:
MTC - Corporate Logo
ES#:
2524094
Mfg#:
0029975336
Back Ordered
Auto Notify
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount

ES#1648543 - 1232420413 - Transmission Mount - Secures the transmission to the crossmember - Genuine Mercedes Benz - Mercedes Benz

Secures the transmission to the crossmember

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1648543
Mfg#:
1232420413
Ships in 4 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.

$185.00

This product was last offered at the strikethrough price on
08-04-2026

$171.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount

ES#2739929 - 1232420413 - Transmission Mount - Secures the transmission to the crossmember - Febi - Mercedes Benz

Secures the transmission to the crossmember 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2739929
Mfg#:
1232420413
In Stock
$28.12

This product was last offered at the strikethrough price on
04-18-2026

$24.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

W123 & W126 Diesel Oil Change Kit 15w-40

ES#3610441 - 0001802509KT3 - W123 & W126 Diesel Oil Change Kit 15w-40 - Everything you need to perform an engine oil service - Liqui-Moly - Mercedes Benz

Everything you need to perform an engine oil service 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3610441
Mfg#:
0001802509KT3
Ships in 1-2 days
$173.32

This product was last offered at the strikethrough price on
07-15-2026

$164.88 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Conical Seat Wheel Bolt - Priced Each

ES#194 - 1255001 - Conical Seat Wheel Bolt - Priced Each - 12x1.5x50mm - H&R - BMW Volkswagen Mercedes Benz

12x1.5x50mm 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
This Bolt Is Not For Use With OE Mercedes-Benz Wheels - This Bolt Is For Aftermarket Wheels That Require A Conical Seat Wheel Bolt

Brand:
H&R - Corporate Logo
ES#:
194
Mfg#:
1255001
In Stock
$5.99

This product was last offered at the strikethrough price on
06-30-2026

$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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