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Your Vehicle 1981 Mercedes Benz 240D Base Sedan 123.123 L4 2.4L

1981 Mercedes Benz 240D Base Sedan 123.123 L4 2.4L Engine Mechanical Parts

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Seals lower oil pan to upper oil pan affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
251350
Mfg#:
6160140122
Ships in 1-2 days
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1618988 - 006888004002 - Camshaft Woodruff Key - Standard Size - Genuine Mercedes Benz - Mercedes Benz

Standard Size affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1618988
Mfg#:
006888004002
Ships in 3 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1632385 - 1089910067 - Woodruff Key - Priced Each - Prevents the pulley from slipping on the shaft - Genuine Mercedes Benz - Mercedes Benz

Prevents the pulley from slipping on the shaft affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1632385
Mfg#:
1089910067
Ships in 3 Business Days
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1817907 - 6160162020 - Cylinder Head Gasket - Priced Each - Located between the cylinder head and the block of your engine - Genuine Mercedes Benz - Mercedes Benz

Located between the cylinder head and the block of your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1817907
Mfg#:
6160162020
Ships in 3 Business Days
5% off MSRP

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

$55.00

This product was last offered at the strikethrough price on
06-12-2026

$51.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1817644 - 6150300160 - Connecting Rod Bearing Set - Repair Size No. 1 - 51.75mm - Genuine Mercedes Benz - Mercedes Benz

Repair Size No. 1 - 51.75mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This Is A Repair Size Bearing Set - Please Verify Fitment Prior To Ordering

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1817644
Mfg#:
6150300160
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.

$89.00

This product was last offered at the strikethrough price on
06-12-2026

$82.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1647237 - 1210520301 - Camshaft Gear - Bolted to the front of the camshaft - Genuine Mercedes Benz - Mercedes Benz

Bolted to the front of the camshaft affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1647237
Mfg#:
1210520301
Ships in 3 Business Days
$288.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1817610 - 6150102372 - Engine Oil Dipstick - For Measuring Oil Sump Level - Genuine Mercedes Benz - Mercedes Benz

For Measuring Oil Sump Level affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1817610
Mfg#:
6150102372
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.

$31.00

This product was last offered at the strikethrough price on
06-12-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1817880
Mfg#:
6160105221
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.

$78.00

This product was last offered at the strikethrough price on
06-12-2026

$72.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Bolted to the front of the crankshaft affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1818665
Mfg#:
6210500409
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.

$149.00

This product was last offered at the strikethrough price on
06-12-2026

$138.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Standard Size - 90.90mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
One (1) Required Per Piston - From Engine 616.912 10/50 064618 Or From Engine Number 616.912 12/52 021938

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1616192
Mfg#:
0030302424
Ships in 3 Business Days
10% off MSRP

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

$132.00

This product was last offered at the strikethrough price on
06-12-2026

$118.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Seals lower oil pan to upper oil pan affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MTC - Corporate Logo
ES#:
2524733
Mfg#:
6160140122
Ships in 9 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2748151 - 000912012029KT2 - Cylinder Head Bolt Set - Includes All Head Bolts Necessary For Cylinder Head Replacement - Assembled By ECS - Mercedes Benz

Includes All Head Bolts Necessary For Cylinder Head Replacement affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up To Engine: 10/50 079810, Or Up To Engine: 12/52 025980

Brand:
Assembled By ECS - Corporate Logo
ES#:
2748151
Mfg#:
000912012029KT2
Ships on Jun 30, 2026
ON SALE!
$170.99

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

$167.03 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2748148 - 6159900212KT4 - Cylinder Head Bolt Set - Includes All Head Bolts Necessary For Cylinder Head Replacement - Assembled By ECS - Mercedes Benz

Includes All Head Bolts Necessary For Cylinder Head Replacement affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
From Engine: 10/50 079811, Or Up To Engine: 12/52 025981

Brand:
Assembled By ECS - Corporate Logo
ES#:
2748148
Mfg#:
6159900212KT4
Ships on Jun 30, 2026
ON SALE!
$149.00

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

$146.12 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1817665 - 6150380072 - Connecting Rod Nut - Priced Each - Two (2) required per connecting rod - Genuine Mercedes Benz - Mercedes Benz

Two (2) required per connecting rod affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Eight (8) Required Per Vehicle

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1817665
Mfg#:
6150380072
Special Order: No Guaranteed ETA
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2748089 - 000912012029KT - Cylinder Head Bolt Set - Includes All Head Bolts Necessary For Cylinder Head Replacement - Genuine Mercedes Benz - Mercedes Benz

Includes All Head Bolts Necessary For Cylinder Head Replacement affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up To Engine: 10/50 079810, Or Up To Engine: 12/52 025980

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
2748089
Mfg#:
000912012029KT
Ships on Jun 30, 2026
$210.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Includes All Head Bolts Necessary For Cylinder Head Replacement affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From Engine: 10/50 079811, Or Up To Engine: 12/52 025981

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
2747980
Mfg#:
6159900212KT
Ships on Jun 30, 2026
$354.99

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

$337.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Mechanical Parts

Whether you're repairing or upgrading your engine, we have engine parts from the most respected suppliers in the business. Purchase engine parts like connecting rods, valves, camshafts, cylinder heads, engine blocks, pistons, and more from ECS Tuning for your next engine repair or overhaul.

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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