Briggs & Stratton Small Engine 21B977/0843-B1 Parts

Shop replacement repair parts for Briggs & Stratton Small Engine model 21B977/0843-B1

Brand:Briggs & Stratton

Model:21B977/0843-B1

Product:Small Engine

Shop Parts Common Problems Diagrams & Manuals Related Videos

Filters

307 results

Briggs & Stratton Small Engine Screw

Genuine OEM Part # 691061 | RC Item #1610955

# 691061
RC Item #1610955

We sell the real thing!

Watch Video

$3.60

Screw-magneto

Briggs & Stratton Small Engine O-Ring

Genuine OEM Part # 691032 | RC Item #1610952

# 691032
RC Item #1610952

Skill Level (1)

We sell the real thing!

Watch Video

$15.45

Seal-dipstick tube

Briggs & Stratton Small Engine Throttle Control

Genuine OEM Part # 691028 | RC Item #1610950

# 691028
RC Item #1610950

We sell the real thing!

Watch Video

$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!

Watch Video

$8.40

Clamp-casing

Briggs & Stratton Small Engine Flange Screw

Genuine OEM Part # 690837 | RC Item #1610936

# 690837
RC Item #1610936

We sell the real thing!

Watch Video

$4.04

Screw-rewind starter

Briggs & Stratton Small Engine Screw

Genuine OEM Part # 690661 | RC Item #1610929

# 690661
RC Item #1610929

We sell the real thing!

Watch Video

$3.60

Screw

Briggs & Stratton Small Engine Washer

Genuine OEM Part # 690582 | RC Item #1610924

# 690582
RC Item #1610924

We sell the real thing!

Watch Video

$4.26

Washer

Briggs & Stratton Small Engine Oil Level or Pressure Switch

Genuine OEM Part # 491657S | RC Item #1610775

# 491657S
RC Item #1610775

We sell the real thing!

Watch Video

$40.66

Switch-oil pressure

Briggs & Stratton Small Engine Starter Pulley

Genuine OEM Part # 692024 | RC Item #1604727

# 692024
RC Item #1604727

Skill Level (2)

We sell the real thing!

Watch Video

$29.84

Electric starter armature

Briggs & Stratton Small Engine Wire Harness

Genuine OEM Part # 393814 | RC Item #1604515

# 393814
RC Item #1604515

We sell the real thing!

Watch Video

$19.08

Diode assembly

Briggs & Stratton Small Engine Hose Clamp

Genuine OEM Part # 691038 | RC Item #1567940

# 691038
RC Item #1567940

Skill Level (1)

We sell the real thing!

Watch Video

$3.97

7/16" Fuel line clamp

Briggs & Stratton Small Engine Air Filter

Genuine OEM Part # 794421 | RC Item #4164466

# 794421
RC Item #4164466

Skill Level (1)

We sell the real thing!

Watch Video

N/A

filter-a/c cartridge

No Longer Available

Briggs & Stratton Small Engine Heavy Duty Degreaser

Genuine OEM Part # 100044 | RC Item #2119693

# 100044
RC Item #2119693

We sell the real thing!

Watch Video

N/A

Single can of engine degreaser-15oz. Made specifically for Briggs & Stratton engines, dissolves dirt and grime reducing maintenanceand downtime. Briggs & Stratton Original Equipment Manufacturer (OEM) parts are designed and engineered for Safety, Quality and Reliability.

No Longer Available

Briggs & Stratton Small Engine Carburetor and Choke Cleaner

Genuine OEM Part # 100042 | RC Item #1782323

# 100042
RC Item #1782323

Skill Level (2)

We sell the real thing!

Watch Video

N/A

Single can of carburetor & choke cleaner-16oz. Made specifically for Briggs & Stratton engines, dissolves deposits in your carb and choke, reducing maintenance and downtime. Briggs & Stratton Original Equipment Manufacturer (OEM) parts are designed and engineered for Safety, Quality and Reliability.

No Longer Available

Briggs & Stratton Small Engine Screw

Genuine OEM Part # 796174 | RC Item #1652079

# 796174
RC Item #1652079

We sell the real thing!

Watch Video

N/A

Screw

No Longer Available

Pageof 21Go

Briggs & Stratton 21B977/0843-B1 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 21B977/0843-B1 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

5 possible causes and potential solutions

Video

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

Frequently Purchased Together For This Model

$13.38

$30.99

$9.26

$11.64

21B977/0843-B1 Parts

Maintain and repair your Briggs & Stratton 21B977/0843-B1 Small Engine efficiently with genuine Briggs & Stratton 21B977/0843-B1 replacement parts from Repair Clinic. Our extensive inventory includes parts for all common 21B977/0843-B1 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 21B977/0843-B1. 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 21B977/0843-B1 Parts?

Genuine Briggs & Stratton replacement parts
Same-day shipping on in-stock items
365-day, no-hassle return policy
Price match guarantee

Repair your Briggs & Stratton 21B977/0843-B1 Small Engine with reliable replacement parts and expert support from Repair Clinic. Order today and ensure your Small Engine stays in top condition.

Talk With Us

We can help you check an order, track a package, start a return, and more.

START A CHAT

Talk With Us

We can help you check an order, track a package, start a return, and more.

Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips!

Our Story

Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.

About Repair Clinic

Customer Stories Repair Parts BrandsDIY Repair Blog In the News

Click for the BBB Business Review of this Appliances - Major - Parts & Supplies in Canton MI

Quick Links

Shipping Information 365 Day Return Policy Retail Location & Hours Contact Us Track Order Reviews Repair Clinic Pro

Social Media

YouTube Facebook Twitter Instagram Pinterest