Briggs & Stratton 21A900 474C 696457, 523 699908, 584 794682, 524, 525 697184, Cover, 474D 696458

Page 15

 

 

 

 

 

 

 

 

21A900

REF.

PART

 

REF.

PART

 

REF.

PART

 

NO.

NO.

DESCRIPTION

NO.

NO.

DESCRIPTION

NO.

NO.

DESCRIPTION

474C

696457

Alternator

523

699908

Dipstick

584

794682

Cover−Breather

 

 

(5 To 9 Amp

524

K691032

Seal−Dipstick Tube

 

 

Passage

 

 

Regulated)

525

697184

Tube−Dipstick

 

 

(Used After Code Date

 

 

Used on Type No(s).

 

 

−−−−−− Note −−−−−−

 

 

07071800).

 

 

0113, 0129, 0133,

 

 

697085 Tube−Dipstick

 

 

(Use With Liquid

 

 

0137, 0146, 0154,

 

 

Used on Type No(s).

 

 

Sealant Reference

 

 

0156, 0157, 0167,

 

 

0115, 0121, 0122,

 

 

850)

 

 

0176, 0179, 0180,

 

 

0133, 0137, 0139,

 

 

−−−−−− Note −−−−−−

 

 

0190, 0192, 0198,

 

 

0140, 0141, 0142,

 

 

697112 Cover−

 

 

0199.

 

 

0143, 0144, 0145,

 

 

Breather Passage

474D

696458

Alternator

 

 

0147, 0149, 0150,

 

 

(Used Before Code

 

 

(10 To 16 Amp

 

 

0151, 0153, 0154,

 

 

Date 07071900).

 

 

Regulated)

 

 

0157, 0159, 0161,

597

691696

Screw

 

 

Used on Type No(s).

 

 

0162, 0164, 0165,

 

 

(Pawl Friction Plate)

 

 

0115, 0165, 0189,

 

 

0166, 0170, 0173,

601

791850

Clamp−Hose

 

 

0197.

 

 

0178, 0179, 0185,

601A

691038

Clamp−Hose

501A

691188

Regulator

 

 

0187, 0188, 0189,

608

695058

Starter−Rewind

 

 

(5 To 9 Amp

 

 

0191, 0197, 0199.

613

691416

Screw

 

 

Regulated)

526A

697088

Screw

 

 

(Muffler)

 

 

Used on Type No(s).

 

 

(Regulator)(5 To 9

613A

691678

Screw

 

 

0113, 0129, 0133,

 

 

Amp Regulated)

 

 

(Muffler)

 

 

0137, 0146, 0154,

526B

697348

Screw

613B

690297

Screw

 

 

0156, 0157, 0167,

527

792167

Clamp−Tube

 

 

(Muffler)

 

 

0179, 0180, 0192,

544

692034

Armature−Starter

614

691620

Pin−Cotter

 

 

0195, 0198, 0199.

552

697144

Bushing−Governor

616

692012

Crank−Governor

501B

698315

Regulator

 

 

Crank

617 KD692138

Seal−O Ring

 

 

(5 To 9 Amp

559

697561

Screw

 

 

(Intake Manifold)

 

 

Regulated)

 

 

(Remote Choke Stop)

621

692310

Switch−Stop

 

 

Used on Type No(s).

 

 

Used on Type No(s).

 

 

Used on Type No(s).

 

 

0176.

 

 

0142, 0166, 0170,

 

 

0101, 0105, 0119,

501C

790292

Regulator

 

 

0185.

 

 

0120, 0134, 0138,

 

 

(Dual Circuit)

559A

693675

Screw

 

 

0139, 0140, 0141,

 

 

Used on Type No(s).

 

 

(Remote Choke Stop)

 

 

0142, 0144, 0145,

 

 

0147, 0150.

 

 

Used on Type No(s).

 

 

0147, 0149, 0150,

501D

691185

Regulator

 

 

0170, 0185.

 

 

0151, 0154, 0156,

 

 

(10 To 16 Amp

562

691119

Bolt

 

 

0157, 0159, 0161,

 

 

Regulated)

 

 

(Governor Control

 

 

0166, 0168, 0176,

 

 

Used on Type No(s).

 

 

Lever)

 

 

0179, 0180, 0184,

 

 

0115, 0165, 0189,

578

692306

Wire Assembly

 

 

0192, 0195, 0198,

 

 

0197.

579

691029

Nut

 

 

0199.

505

691251

Nut

 

 

(Starter Cable)

633

690597

Seal−Choke/Throttle

 

 

(Governor Control

 

 

 

 

 

Shaft

 

 

Lever)

 

 

 

 

 

Used on Type No(s).

507

691972

Insulator

 

 

 

 

 

0142, 0166.

510

693699

Drive−Starter

 

 

 

634

D690802

Spring/Seal Assembly

513

692024

Clutch−Drive

 

 

 

 

 

(Walbro)

520

691084

Terminal−Ground

 

 

 

634A

D698779

Spring/Seal Assembly

521

690581

Shield−Cable

 

 

 

 

 

(Nikki)

 

 

Used on Type No(s).

 

 

 

635

691909

Boot−Spark Plug

 

 

0121, 0122, 0123,

 

 

 

643

697155

Retainer−Air Filter

 

 

0124, 0125, 0127,

 

 

 

654

690958

Nut

 

 

0128, 0172, 0173,

 

 

 

 

 

(Carburetor)

 

 

0178, 0186.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KIncluded in Engine Gasket Set−Ref. No. 358.

DIncluded in Carburetor Overhaul Kit−Ref. No. 121 or 121A.

zIncluded in Carburetor Gasket Set−Ref. No. 977 or 977A. Δ Included in Valve Gasket Set−Ref. No. 1095.

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.

5069−15

Assemblies include all parts shown in frames.

02/07/2008

15

Image 15
Contents Illustrated Parts List With warning labels affixed 847 Valve Gasket SET See text WalbroNikki Emissions Label 1070 1005B 37A 187 187A 601 240 For additional information K391086S 69737723A 693555 39926578A 690364 691003121 790031 697352202 137Dz281165S192 216 691840267 794904 265 691024311 497608 387A 808656524 474C 696457523 699908 584 794682758 676 393761757 843 697158691956 398661968 697420 1040 698368−−−−−− Note −−−−−− 1319 794467 1263 6971241270 697156 1264 697104

21A900 specifications

Briggs & Stratton is a name synonymous with reliability and innovation in the small engine industry. Among its varied product lineup, the Briggs & Stratton 21A900 stands out for its performance and efficiency, making it an excellent choice for both homeowners and professionals.

The Briggs & Stratton 21A900 is a versatile engine specifically designed for lawn mowers and other outdoor power equipment. One of its hallmark features is its compact design, making it lightweight while still delivering robust performance. This makes it an ideal choice for residential lawn care, as well as for commercial landscaping operations.

One of the key technologies employed in the 21A900 is the Overhead Valve (OHV) design. This technology enhances engine efficiency by placing the valves in the cylinder head, allowing for better airflow and improved combustion. This results in increased power output and fuel efficiency, making it eco-friendlier compared to older engine designs.

In addition, the engine is equipped with a reliable starter mechanism, which enables easy starts even in cold conditions. The ReadyStart® system is a notable feature that eliminates the need for manual priming or choking, ensuring that users can get to work with minimal fuss.

The 21A900 also boasts a governor system designed to maintain engine speed under varying loads. This is particularly beneficial for lawn mowers, as it allows the engine to adjust power output automatically when encountering tougher grass or uneven terrain. As a result, users can enjoy consistent performance without constantly adjusting the throttle.

Durability is another significant characteristic of the 21A900. Briggs & Stratton engines are known for their rugged construction and the 21A900 is no exception. Built with high-quality materials, it promises long-lasting performance and reduced maintenance issues, which translates to lower total cost of ownership for users.

Maintenance is made easier with the inclusion of features such as a top-mounted oil fill and a convenient oil drain. This user-friendly design simplifies routine oil checks and changes, ensuring that the engine stays in top shape.

In summary, the Briggs & Stratton 21A900 engine combines advanced technologies, user-friendly features, and durable construction to deliver a powerful and efficient solution for outdoor power equipment. Whether used in a residential or commercial setting, the 21A900 ensures reliable performance for all lawn care needs. This engine exemplifies the commitment of Briggs & Stratton to quality and innovation, making it a trusted choice for users around the world.