Briggs & Stratton Small Engine 12S437/0121-F8 Parts

Shop replacement repair parts for Briggs & Stratton Small Engine model 12S437/0121-F8

Brand:Briggs & Stratton

Model:12S437/0121-F8

Product:Small Engine

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314 results

Briggs & Stratton Small Engine Spark Arrestor

Genuine OEM Part # 399541 | RC Item #1641061

# 399541
RC Item #1641061

We sell the real thing!

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$33.92

Spark Arrester with 4 screws

Briggs & Stratton Small Engine Screw

Genuine OEM Part # 398185 | RC Item #1640946

# 398185
RC Item #1640946

We sell the real thing!

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$9.64

Idle Speed Adjustment Screw With Spring

Briggs & Stratton Small Engine Bearing

Genuine OEM Part # 99158 | RC Item #1639363

# 99158
RC Item #1639363

Skill Level (3)

We sell the real thing!

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$24.90

Bearing-ball

Briggs & Stratton Small Engine Air Cleaner Gasket

Genuine OEM Part # 696024 | RC Item #1611136

# 696024
RC Item #1611136

Skill Level (2)

We sell the real thing!

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$7.26

Gasket-air cleaner

Briggs & Stratton Small Engine Valve Cover Gasket

Genuine OEM Part # 694088 | RC Item #1611113

# 694088
RC Item #1611113

Skill Level (3)

We sell the real thing!

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$8.58

Cylinder Head Plate Gasket

Briggs & Stratton Small Engine Carburetor Gasket

Genuine OEM Part # 692555 | RC Item #1611092

# 692555
RC Item #1611092

Skill Level (2)

We sell the real thing!

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$4.61

Gasket, carburetor to cylinder

Briggs & Stratton Small Engine Oil Seal

Genuine OEM Part # 692550 | RC Item #1611091

# 692550
RC Item #1611091

Skill Level (3)

We sell the real thing!

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$9.92

Oil Seal, L-Head, 5.5 HP Intek (PTO), 825 Series

Briggs & Stratton Small Engine Square Key

Genuine OEM Part # 692191 | RC Item #1611051

# 692191
RC Item #1611051

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$2.88

Square key, drive pulley

Briggs & Stratton Small Engine Flange Bolt

Genuine OEM Part # 691664 | RC Item #1610986

# 691664
RC Item #1610986

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$5.28

Screw-connecting rod

Briggs & Stratton Small Engine Pan Head Screw

Genuine OEM Part # 691636 | RC Item #1610979

# 691636
RC Item #1610979

We sell the real thing!

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$5.41

Screw

Briggs & Stratton Small Engine Throttle Control

Genuine OEM Part # 691028 | RC Item #1610950

# 691028
RC Item #1610950

We sell the real thing!

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$52.52

Lever-control

Briggs & Stratton Small Engine Clamp

Genuine OEM Part # 691024 | RC Item #1610949

# 691024
RC Item #1610949

We sell the real thing!

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$8.40

Clamp-casing

Briggs & Stratton Small Engine Woodruff Key

Genuine OEM Part # 690979 | RC Item #1610946

# 690979
RC Item #1610946

Skill Level (3)

We sell the real thing!

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$3.93

Woodruff Key. Aligns the timing gear on the crankshaft

Briggs & Stratton Small Engine Valve Tappet

Genuine OEM Part # 690977 | RC Item #1610945

# 690977
RC Item #1610945

Skill Level (3)

We sell the real thing!

Watch Video

$4.42

Valve Tappet. The tappet rides on the camshaft lobes and activates the push rods and valves.

Briggs & Stratton Small Engine Screw

Genuine OEM Part # 690661 | RC Item #1610929

# 690661
RC Item #1610929

We sell the real thing!

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$3.60

Screw

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Briggs & Stratton 12S437/0121-F8 Problems & Repair Solutions

There are only a handful of issues that crop up with most appliances and equipment. Since 1912, we've learned to recognize the most common Briggs & Stratton 12S437/0121-F8 problems ― and their solutions. Do any of these look familiar?

Small engine won't start

8 possible causes and potential solutions

Video

Small engine stops after a few seconds

5 possible causes and potential solutions

Video

Small engine runs poorly

8 possible causes and potential solutions

Video

VIEW ALL COMMON PROBLEMS Shop All Briggs & Stratton Small Engine Parts

Frequently Purchased Together For This Model

$6.76

$8.80

$9.98

$7.04

12S437/0121-F8 Parts

Maintain and repair your Briggs & Stratton 12S437/0121-F8 Small Engine efficiently with genuine Briggs & Stratton 12S437/0121-F8 replacement parts from Repair Clinic. Our extensive inventory includes parts for all common 12S437/0121-F8 repairs, ensuring you have everything needed for a successful fix.

Search by model number, part category, part title, or specific symptoms to locate the right parts for your 12S437/0121-F8. Use detailed parts diagrams, repair help guides, and manuals to guide your repair process. Repair Clinic provides troubleshooting tips and videos to resolve common issues and keep your equipment running like new.

Why Choose Repair Clinic for 12S437/0121-F8 Parts?

Genuine Briggs & Stratton replacement parts
Same-day shipping on in-stock items
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Price match guarantee

Repair your Briggs & Stratton 12S437/0121-F8 Small Engine with reliable replacement parts and expert support from Repair Clinic. Order today and ensure your Small Engine stays in top condition.

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