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Your Vehicle 1991 Mercedes Benz 350SD Base Sedan 126.134 L6 3.4L

1991 Mercedes Benz 350SD Base Sedan 126.134 L6 3.4L Engine Mechanical Parts

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ES#4879383 - 111-997-03-30-LN - LN Engineering Billet Magnetic Engine Oil Drain Plug With Crush Washer - Priced Each - Monitor the condition of your engine's lubricating system at each service and remove harmful metallic contaminants from imposing premature wear. M14x1.5mm thread - LN Engineering - Mercedes Benz

Monitor the condition of your engine's lubricating system at each service and remove harmful metallic contaminants from imposing premature wear. M14x1.5mm thread affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
LN Engineering - Corporate Logo
ES#:
4879383
Mfg#:
111-997-03-30-LN
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
ES#4684532 - V302370KIT - Oil Dipstick Kit - Set Of Four - Featuring the classic oil dipstick sizes, used to check various fluid levels in your vehicle - Vaico - Mercedes Benz

Featuring the classic oil dipstick sizes, used to check various fluid levels in your vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4684532
Mfg#:
V302370KIT
Special Order: No Guaranteed ETA
$308.99

This product was last offered at the strikethrough price on
01-20-2026

$161.99 USD
Free Shipping
on orders $49 and up
ES#3421920 - 000010030164 - Engine Oil Cap - Includes new seal - Genuine Mercedes Benz - Mercedes Benz

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

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
3421920
Mfg#:
000010030164
Ships in 2 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.

$19.00

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

$17.99 USD
Free Shipping
on orders $49 and up
ES#3970064 - 007603014106 -  Oil Drain Plug Sealing Washer - Priced Each - Victor Reinz - Mercedes Benz

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

Brand:
Victor Reinz - Corporate Logo
ES#:
3970064
Mfg#:
007603014106
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
ES#4370856 - W125C - Feeler Gauge Set  - Thickness Gauge (32 Blades) - Performance Tool - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Thickness Gauge (32 Blades) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Performance Tool - Corporate Logo
ES#:
4370856
Mfg#:
W125C
Ships in 1 Business Day
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2524112 - 007603014106 -  Oil Drain Plug Sealing Washer - 100 Pack - Stock up and save! - MTC - Mercedes Benz

Stock up and save! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MTC - Corporate Logo
ES#:
2524112
Mfg#:
007603014106
Ships in 6 Business Days
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2973113 - 6030108620 - Cylinder Head Gasket Set - Elring - Mercedes Benz

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2973113
Mfg#:
6030108620
Back Ordered
$104.21 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1816532 - 6030108620 - Cylinder Head Gasket Set - Genuine Mercedes Benz - Mercedes Benz

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

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1816532
Mfg#:
6030108620
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.

$110.00

This product was last offered at the strikethrough price on
06-20-2026

$102.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2871723 - 6010501024 - valve guide - Febi - Mercedes Benz

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2871723
Mfg#:
6010501024
Ships on Sep 17, 2026
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1634416 - 1110180080 -  Oil Filler Cap Seal - 47mm x 59mm x 2.5mm - If your oil cap is tough to turn off by hand, its time for a new seal. - Genuine Mercedes Benz - Mercedes Benz

47mm x 59mm x 2.5mm - If your oil cap is tough to turn off by hand, its time for a new seal. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1634416
Mfg#:
1110180080
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3580841 - 120997034664 - Front Crankshaft Seal - Prevents oil from leaking out of your crankcase at the front crankshaft flange - Genuine Mercedes Benz - Mercedes Benz

Prevents oil from leaking out of your crankcase at the front crankshaft flange affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
3580841
Mfg#:
120997034664
Back Ordered
8% off MSRP

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

$37.99

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

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2628609 - 6060140022 - Engine Oil Pan Gasket - Seals the gap between the oil pan and the crankcase - Victor Reinz - Mercedes Benz

Seals the gap between the oil pan and the crankcase affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
2628609
Mfg#:
6060140022
Ships in 3 Business Days
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1815717 - 6010110108 - Rear Main Crankshaft Seal Retainer - Bolted to the rear of the crankcase, this retainer holds the rear main seal in place - Genuine Mercedes Benz - Mercedes Benz

Bolted to the rear of the crankcase, this retainer holds the rear main seal in place affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1815717
Mfg#:
6010110108
Ships in 3 Business Days
$32.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2678135 - 1110380071 - Connecting Rod Bolt - Priced Each - Replace these bolts each time they are removed - Febi - Mercedes Benz

Replace these bolts each time they are removed affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2678135
Mfg#:
1110380071
In Stock at Vendor
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4684475 - 7603012110 - Sealing Washer - Priced Each - 12mm diameter copper crush washer - Vaico - Mercedes Benz

12mm diameter copper crush washer affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4684475
Mfg#:
7603012110
In Stock at Vendor
$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
ES#1815745 - 6010170203 - Screw Collar - Priced Each - Pre-Chamber To Cylinder Head - Genuine Mercedes Benz - Mercedes Benz

Pre-Chamber To Cylinder Head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1815745
Mfg#:
6010170203
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.

$64.00

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

$59.99 USD
Free Shipping
on orders $49 and up
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.

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