Model K321S Spec. 60434

Fits Toro Sand Pro

20

21

19 17

8

9

18

Item

R&R

KOHLER

 

Qty. Discounted

No.

Part No.

Part No.

Description

Req. Price Each

1

Ignition - Group 18

Kohler Kit, Stator (15 amp.)

1

76.10

RK237878

237878

2

RKX7781

X-778-1

Use RKX6751

4

0.94

2

RKX6751

X-675-1

Kohler Screw, R.H. 10-24 x 3/4

3

RKX7281

X-728-1

Kohler Clip

1

0.93

4

RKX6759

X-67-59

Kohler Screw, Sheet Metal

1

0.39

5

RK275303

275303

Kohler Clip

1

2.05

12

10

7 6

11

3

4

5

14

1

13

15

 

 

6

RK4741104

47 411 04

Kohler Rod, Breaker

1

8.20

7

RK4715003

47 150 03

Kohler Breaker Assembly

1

10.10

8

RK4775703

47 757 03

Kohler Tune Up Kit

1

22.40

9

RK4775705

47 757 05

Kohler Ignition Kit

1

17.15

10

RKX1311

X-131-1

Kohler Screw, F.H.M. 10-24 x 3/8

4

0.47

11

RK5204111

52 041 11

Kohler Gasket, Cover

1

1.00

12

RK232535

232535

Kohler Cover, Breaker

1

6.40

13

RK230722

230722

Kohler Condenser

1

5.00

14

RK231281

231281

Kohler Coil

1

29.95

15

RKX1322

X-132-2

Kohler Screw, H.C. Sems 1/4-20x3/4 2

0.99

16

RK4815502

48 155 02

Kohler Connector

1

4.35

17

RK235041S

235041-S

Kohler Plug, Spark

1

4.55

22

16

4

OLD STYLE

PISTON

3

4

1

2

2

2

3

1

NEW STYLE

PISTON

6

7

3

5

18

RK238057

238057

Kohler Kit, High Tension Lead

1

20.70

 

19

RKX1324

X-132-4

Kohler Screw, H.C. Sems 1/4-20x12

0.99

 

20

RK236602

236602

Kohler Connector

1

3.30

 

21

RK4140305

41 403 05

Use RK2575503

1

56.95

 

21

RK2575503

25 755 03

Kohler Rectifier-Regulator

 

22

RK220297

220297

Kohler Grommet

1

2.05

 

1

Oil Pan - Group 21

Kohler Plug,

1

7.60

 

RKX3054

X-305-4

 

2

RKX1593

X-159-3

Magnetic Drain Hex. Hd. 3/8

4

1.30

 

Kohler Screw, H.C. 3/8-16 x 1 1/4

 

3

RK235057

235057

Kohler Gasket, Pan

1

3.50

 

4

RK235147

235147

Kohler Base, Oil Pan

1

126.40

 

 

Piston & Rod - Group 22

 

 

 

 

1

OLD STYLE PISTON

Kohler Rod, Connecting (Std.)

1

45.10

 

RK4706709

47 067 09

 

1

RK4706710

47 067 10

Kohler Rod, Connecting (.010)

1

45.10

 

2

RK4787411

47 874 11

Kohler Piston Assy, Standard

1

131.90

 

2

RK4787412

47 874 12

Kohler Piston Assy, .003

1

111.55

 

2

RK4787413

47 874 13

Kohler Piston Assy, .010

1

131.90

 

2

RK4787414

47 874 14

Kohler Piston Assy, .020

1

131.90

 

2

RK4787415

47 874 15

Kohler Piston Assy, .030

1

131.90

 

3

RK4810805

48 108 05

Kohler Ring Set, Std. & .003

1

53.90

 

3

RK4810806

48 108 06

Kohler Ring Set, .010

1

49.40

 

3

RK4810807

48 108 07

Kohler Ring Set, .020

1

63.50

 

3

RK4810808

48 108 08

Kohler Ring Set, .030

1

63.50

 

4

RK4701801

47 018 01

Kohler Retainer, Pin

2

2.10

 

5

NEW STYLE MAHLE PISTON DESIGN

 

59.85

 

RK4506724

45 067 24

Kohler Rod, Connecting - Standard1

987

5

RK4506725

45 067 25

Kohler Rod, Connecting - .010

1

83.55

6

RK4787421

47 874 21

Kohler Piston Assy, Standard

1

166.65

6

RK4787422

47 874 22

Kohler Piston Assy, .003

1

124.95

 

6

RK4787423

47 874 23

Kohler Piston Assy, .010

1

160.65

 

6

RK4787424

47 874 24

Kohler Piston Assy, .020

1

160.65

 

6

RK4787425

47 874 25

Kohler Piston Assy, .030

1

124.95

 

7

RK4710805

47 108 05

Kohler Ring Set, Std. & .003

1

59.30

 

7

RK4710806

47 108 06

Kohler Ring Set, .010

1

56.55

 

7

RK4710807

47 108 07

Kohler Ring Set, .020

1

56.55

 

7

RK4710808

47 108 08

Kohler Ring Set, .030

1

56.55

 

4

RK4701801

47 018 01

Kohler Retainer, Pin

2

2.10

 

Order parts according to design used on engine

Page 47 Page 49
Page 48
Image 48
Kohler RKPX60390, K321S service manual 987, OLD Style Piston NEW Style
Page 47 Page 49

K321S, RKPX60390 specifications

The Kohler RKPX60390, K321S is a high-performance engine designed specifically for use in outdoor power equipment. Renowned for its durability and efficiency, this engine has solidified its reputation as a reliable choice for both professionals and homeowners alike.

One of the standout features of the K321S model is its robust construction. Built with heavy-duty components, it ensures longevity even under the most demanding conditions. The engine is equipped with a durable cast-iron cylinder sleeve which helps to resist wear and tear, thereby extending the life of the engine.

In terms of power output, the K321S does not disappoint. It delivers impressive horsepower, making it suitable for a range of applications from lawn mowers to generators. This translates to efficient operation, providing users with the ability to tackle more strenuous tasks without compromising on performance.

The K321S engine also incorporates advanced technology aimed at improving fuel efficiency. This engine's design optimizes combustion, which not only enhances performance but also reduces emissions, making it an environmentally friendly choice. Additionally, its fuel system is engineered for reliable starting, ensuring that users can count on it to perform when needed.

Another significant characteristic of the K321S is its user-friendly maintenance design. The engine features easily accessible components, which simplifies routine checks and repairs. This is particularly beneficial for those who prefer to handle maintenance tasks themselves, saving both time and money.

Moreover, the engine is designed to minimize vibrations, resulting in a smoother operation. This aspect enhances user comfort, making it easier to handle the equipment over extended periods without fatigue.

In conclusion, the Kohler RKPX60390, K321S stands out as a powerful, efficient, and durable engine. Its combination of advanced technology, user-friendly design, and robust performance makes it an ideal choice for a wide range of outdoor applications. Whether you are a professional or a DIY enthusiast, the K321S engine is a reliable partner that guarantees performance and longevity.
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