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1991 Mercedes Benz 350SD Base Sedan 126.134 L6 3.4L

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Your Vehicle 1991 Mercedes Benz 350SD Base Sedan 126.134 L6 3.4L
Your Vehicle 1991 Mercedes Benz 350SD Base Sedan 126.134 L6 3.4L
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1991 Mercedes Benz 350SD Base Sedan 126.134 L6 3.4L Engine Service & Maintenance Parts

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Hella Test Light Tool

ES#4988 - UN6317275 - Hella Test Light Tool - With piercing needle tool, for 6, 12 & 24v systems - Hella - Audi BMW Volkswagen Mercedes Benz MINI Porsche

With piercing needle tool, for 6, 12 & 24v systems affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hella - Corporate Logo
ES#:
4988
Mfg#:
UN6317275
Ships in 1 Business Day
$18.99

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

$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner Spring

ES#4017912 - 6019932710 - Belt Tensioner Spring - Applies constant tension to the accessory drive belt - URO - Mercedes Benz

Applies constant tension to the accessory drive belt 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:
URO - Corporate Logo
ES#:
4017912
Mfg#:
6019932710
Ships in 1 Business Day
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pento High Performance 5W-30 - 1 Liter

ES#4351742 - 8043107 - Pento High Performance 5W-30 - 1 Liter - One of the world's best all around synthetic engine oils - Pentosin - Audi BMW Volkswagen Mercedes Benz MINI

One of the world's best all around synthetic engine oils affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pentosin - Corporate Logo
ES#:
4351742
Mfg#:
8043107
In Stock
ON SALE! SAVE 19%
$21.31

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

$17.27 USD
Free Shipping
on orders $49 and up

Fuel Strainer

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

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

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

Multi Purpose Drain Pan

ES#4340056 - 197N-1 - Multi Purpose Drain Pan - Don't make a mess! - Hazet - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Don't make a mess! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hazet - Corporate Logo
ES#:
4340056
Mfg#:
197N-1
In Stock at Vendor
$33.03

This product was last offered at the strikethrough price on
06-03-2026

$32.68 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Filter Element - Priced Each

ES#2777697 - 6030940204 - Air Filter Element - 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 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! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
2777697
Mfg#:
6030940204
Ships in 1-2 days
$32.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spin-On Fuel Filter - Priced Each

ES#2587012 - 6010901452 - Spin-On Fuel Filter - Priced Each - The final filter before the injection pump - Mahle - Mercedes Benz

The final filter before the injection pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle - Corporate Logo
ES#:
2587012
Mfg#:
6010901452
In Stock at Vendor
$30.24 USD
Free Shipping
on orders $49 and up

Feeler Gauge Set

ES#3603420 - CTAA311 - Feeler Gauge Set - 25 Blade Extra Long Reach - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

25 Blade Extra Long Reach affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
3603420
Mfg#:
CTAA311
Ships on Jul 8, 2026
$28.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter - Priced Each

ES#2587371 - 6011800109 - Oil Filter - Priced Each - Includes all needed o-rings for installation - Mahle - Mercedes Benz

Includes all needed o-rings for installation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle - Corporate Logo
ES#:
2587371
Mfg#:
6011800109
In Stock at Vendor
$26.09 USD
Free Shipping
on orders $49 and up

Hightec SYNTH RS DLS SAE 5W-30 - 1 Liter

Specially developed engine oil based on selected HC synthetic base oils for modern passenger car Otto and diesel engines with exhaust DPF's and turbocharging. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ROWE - Corporate Logo
ES#:
5374163
Mfg#:
20118-0010-99
Ships in 7 Business Days
Auto Notify
$11.99 USD
Free Shipping
on orders $49 and up

Sealing Washer - Priced Each

ES#2723942 - 007603012110 - Sealing Washer - Priced Each - 12mm diameter copper crush washer - Victor Reinz - Mercedes Benz

12mm diameter copper crush washer affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
2723942
Mfg#:
007603012110
In Stock
$1.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Filter Cleaning Fluid - 500ml

ES#2626404 - C9003 - Filter Cleaning Fluid - 500ml - Removes dirt from oiled Pipercross filters to regain air flow performance - Pipercross - Audi BMW Mercedes Benz MINI Porsche

Removes dirt from oiled Pipercross filters to regain air flow performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pipercross - Corporate Logo
ES#:
2626404
Mfg#:
C9003
Ships in 4 Business Days
$21.99 USD
Free Shipping
on orders $49 and up

Spin-On Fuel Filter - Priced Each

ES#2587013 - 6010901452 - Spin-On Fuel Filter - Priced Each - The final filter before the injection pump - Hengst - Mercedes Benz
ECS Tuning recommends this product.

The final filter before the injection pump 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! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
2587013
Mfg#:
6010901452
In Stock at Vendor
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

In-Line Fuel Filter - Priced Each

ES#2580874 - 0014774201 - In-Line Fuel Filter - Priced Each - Does not have OE style brass inserts - Bosch - Mercedes Benz

Does not have OE style brass inserts 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:
Bosch - Corporate Logo
ES#:
2580874
Mfg#:
0014774201
In Stock at Vendor
$5.99 USD
Free Shipping
on orders $49 and up

Synthetic Engine Oil (0w-40) - 1 Liter

ES#3524466 - V60-0055 - Synthetic Engine Oil (0w-40) - 1 Liter - Meets Volkswagen & Audi 502.00 / 505.00 specification - Vaico - Audi Volkswagen Mercedes Benz

Meets Volkswagen & Audi 502.00 / 505.00 specification 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#:
3524466
Mfg#:
V60-0055
Special Order: No Guaranteed ETA
$16.99 USD
Free Shipping
on orders $49 and up

Oil Filter - Priced Each

ES#2587141 - 6011800109 - Oil Filter - Priced Each - Includes all needed o-rings for installation - Bosch - Mercedes Benz

Includes all needed o-rings for installation 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:
Bosch - Corporate Logo
ES#:
2587141
Mfg#:
6011800109
Back Ordered
$16.99

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

$15.99 USD
Free Shipping
on orders $49 and up

More About Engine Service & Maintenance Parts

An ounce of prevention improves engine reliability and heads off big-ticket repairs. On average, the modest cost or periodic maintenance pays handsome rewards. Plan now to put your car on a regular schedule that includes fluid and filter changes, inspections, and recommended service.

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