KAWASAKI 13139-1004 Rear Differential Shifter

( Manufacturer Part Number: 13139-1004 ), ( Type: Rear Differential Shifter )

Review KAWASAKI Oem Rear Differential Shifter fits KLT200C KLT 200 1983

The **Kawasaki 13139-1004 1983 KLT200C Rear Differential Shifter** is a meticulously engineered, high-performance component designed exclusively for Kawasaki s legendary **KLT200C**, a classic off-road motorcycle celebrated for its rugged durability and adventurous spirit. This shifter is a precision-crafted part, built to withstand the demands of rough terrain, aggressive riding, and the relentless forces exerted during off-road maneuvers, including sharp turns, steep climbs, and sudden gear shifts. Crafted from high-grade materials, the shifter features a robust, heat-treated steel construction that ensures longevity and resistance to wear, even under the most extreme conditions. Its design incorporates a smooth, ergonomic lever mechanism, allowing for effortless and precise engagement of the differential lock, a critical feature for enhancing traction and stability on loose or uneven surfaces. The shifter is engineered to fit seamlessly into the KLT200C s drivetrain, ensuring a secure and reliable connection to the rear axle, which is essential for maintaining optimal power transfer and handling. Whether you're tackling rocky trails, muddy rivers, or sandy dunes, this shifter delivers the responsiveness and durability required to keep your KLT200C performing at its peak. For enthusiasts seeking to restore or upgrade their classic Kawasaki, this part is an indispensable addition, combining both functionality and authenticity to preserve the motorcycle s original performance characteristics while ensuring it remains ready for the next adventure.

Buying a **1983 Kawasaki KLT200C rear differential shifter (part number 131139-1004)** involves several considerations, as this is a specialized aftermarket component for off-road motorcycles. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

---

### **Pros of buying a Kawasaki KLT200 Rear Differential Shifter (131139-1004)**

1. **Improved Off-Road Performance**

The rear differential shifter allows for manual engagement of the differential lock, which enhances traction in loose or slippery terrain (mud, sand, snow, or rocky trails). This is particularly useful for riders who frequently tackle challenging off-road conditions where a locked differential prevents wheel spin and improves control.

2. **Compatibility with Stock KLT200**

This part is designed specifically for the Kawasaki KLT200C, ensuring a seamless fit without requiring extensive modifications. The shifter integrates with the existing wiring and linkage, making installation relatively straightforward for those with basic mechanical skills.

3. **Durability and Reliability**

Kawasaki components, even aftermarket or reproduction parts, are generally built to withstand the rigors of off-road use. The shifter is likely constructed from sturdy materials (e.g., metal or reinforced plastic) to endure frequent engagement and disengagement.

4. **Enhanced Control in Technical Terrain**

For riders who push their KLT200 in competitive off-roading or extreme conditions, a differential shifter provides an extra layer of control. It can be toggled on or off mid-ride, allowing the rider to switch between open and locked differential modes as needed.

5. **Potential Increase in Resale Value**

If you plan to sell the KLT200 later, installing a differential shifter may appeal to serious off-road enthusiasts, potentially making the bike more desirable to collectors or riders who prioritize performance upgrades.

6. **Aftermarket Support and Community**

The Kawasaki KLT200 has a dedicated off-road community, and parts like this shifter are often discussed in forums (e.g., Kawasaki KLT forums, 4x4 forums, or motorcycle restoration groups). This means you can find installation guides, troubleshooting tips, and peer reviews to inform your decision.

7. **Future-Proofing for Modifications**

If you plan to further modify your KLT200 (e.g., adding a winch, lifting the suspension, or installing larger tires), a differential shifter can complement these changes by improving traction in modified setups.

---

### **Cons of buying a Kawasaki KLT200 Rear Differential Shifter (131139-1004)**

1. **Cost Relative to Benefit**

The part itself may not be extremely expensive, but installation could require additional components (e.g., wiring harness, mounting brackets, or a switch) if they aren t already included. For casual riders who rarely encounter conditions requiring a locked differential, the cost may not justify the upgrade.

2. **Learning Curve for Installation**

While the shifter is designed for the KLT200, installing it may require familiarity with motorcycle wiring, differential mechanics, or basic soldering. Those without mechanical experience may need to hire a professional, adding to the overall cost.

3. **Maintenance and Wear**

The shifter mechanism (e.g., the switch, wiring, or linkage) can wear out over time, especially if frequently toggled. This may require periodic inspection or replacement, adding long-term maintenance costs.

4. **Limited Use Cases**

A differential shifter is most beneficial in extreme off-road conditions. On paved roads or mild trails, the locked differential offers no advantage and may even slightly reduce fuel efficiency due to increased drag. For most daily riders, the feature remains unused.

5. **Potential for Misuse**

Engaging the differential lock unnecessarily (e.g., on dry pavement) can damage the drivetrain or tires. Riders must understand when and how to use the shifter correctly to avoid harming the bike.

6. **Availability and Sourcing Challenges**

While Kawasaki parts are widely available, reproduction or aftermarket parts may come from less reputable sellers. Ensure the part is genuine or from a trusted supplier to avoid counterfeit or low-quality components that could fail prematurely.

7. **Weight Addition**

The shifter and associated hardware add slight weight to the rear of the bike. For riders who prioritize lightweight handling, this may be a minor but noticeable drawback.

8. **Compatibility with Other Mods**

If you ve previously modified the KLT200 (e.g., swapped the differential, altered the exhaust, or changed the suspension), the shifter may require additional adjustments or may not function as intended. Always verify compatibility with existing mods.

---

### **Conclusion**

The **1983 Kawasaki KLT200C rear differential shifter (131139-1004)** is a worthwhile upgrade for **serious off-road riders** who frequently tackle challenging terrain where traction is critical. It enhances the bike s capabilities in mud, sand, or rocky conditions, providing a competitive edge in technical riding. However, for **casual riders, paved-road enthusiasts, or those on a tight budget**, the benefits may not outweigh the costs or complexity of installation.

- Verify the part s authenticity and compatibility with your specific KLT200 model.

- Budget for any additional hardware (wiring, mounting, etc.) if not included.

- Understand the proper use of the differential lock to avoid damaging the bike.

- Consider hiring a professional if mechanical experience is limited.

---

### **Recommendation**

- You ride your KLT200 primarily off-road in demanding conditions.

- You are comfortable with basic motorcycle maintenance or can afford professional installation.

- You value the added control and traction in extreme terrain.

- You mostly ride on pavement or mild trails.

- You are unsure about installing or maintaining the component.

- The cost does not align with your budget or the bike s intended use.

For most riders, this part is a **highly specialized upgrade** rather than a necessity. If you re unsure, test the bike in your typical conditions first if you frequently struggle with wheel spin in loose terrain, the shifter could be a game-changer. Otherwise, prioritize other upgrades (e.g., suspension, tires, or exhaust) that offer broader benefits.

Details:

Removed From NA. 1983 KAWASAKI KLT200C KLT 200 C OEM REAR DIFFERENTIAL SHIFTER, This SHIFTER is in very good condition and shows normal signs of wear. BIN #41U, Please review all pictures to assess the condition of item.

part #: 131391004 prices

• $48.00-$299.95

specifications cyclevintagee:

• for models: Klt200c, Klt, 200
• for makes: Kawasaki
• for years: 1983
• mpn: 13139-1004
• type: Rear Differential Shifter

offer cyclevintagee:

• availability: In Stock
• sold: 0
• best offers: True
• options: Ship-to-home
• started: June 3, 2026
• quantity: 1

payments cyclevintagee:

• other
• credit card: Discover
• wallet: Paypal

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

seller cyclevintagee:

• # reviews: 7429
• city: Spokane, Washington
• rating: 99.1%

returns cyclevintagee:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

shipping cyclevintagee:

• service: Standard
• transit: 3-8 Days
• type: Fixed
• class: Standard
• cost: $0.00

Kawasaki 13139-1004 Is Similar To:

• 11004-1039 Kawasaki Nos Oem 1981-1982-1983 (24.6% similar) ...(October 24th, 2017)
• 11004-1130 11004-1159 11004-1130 Kawasaki New Oem (21.5% similar) One 1 new oem kawasaki gasket. Part number, satisfaction guaranteed or your money back...(November 30th, 2017)
• 11004-1327 Kawasaki Ninja Head Gasket New Oem 725984001057 (27.7% similar) The picture could be generic. New oem kawasaki gasket head oem part number: 11004-1327ITEM only fits specific model's listed. New oem kawasaki gasket head oem part number: 11004-1327ITEM only fits specific model's listed. Fits: 1998 ninja ZX-9R 1999...(July 18th, 2018)
• 11009-005 Kawasaki Nos Oem Cylinder Base Gasket (31.9% similar) Nos oem kawasaki j1 cylinder base gasket. Please reference the part number for best understanding of model fitment. This part does not include the original packaging. Please with any questions...(July 10th, 2018)
• 11009-1051 Kawasaki Oem Fuel Tank (30.5% similar) Please look at the pictures and ask any questions. This is new old stock not in factory package, kawasaki oem fuel tank cap gasket, research shows it fits: EX305 b1 1983 , KZ1000 A1-4,E1-2,J1-3,K1-2,M1-2,P1-9,R1 ,KZ1300 A1-4,B2 1979 -'82,KZ250 D1-2,L1,W1, 1980 -'83 ,KZ400 h1 1997 , KZ440 A1-4,D1...(May 28th, 2017)
• 11009-1101 Kawasaki Oem Kz1300 Zn1300 (27.5% similar) Satisfaction guaranteed or your money back. One 1 new oem kawasaki gasket...(February 11th, 2018)
• 11009-1208 Kawasaki Nos Cylinder Gasket Oem New (28.6% similar) Office kawasaki box 398. The actual item is shown. Free USA shipping. Authenticity:every item I sell is 100 authentic. Up for sale is this genuine kawasaki gasket as shown only - seen in the above photos. This is in nos unused condition. Shipping: I only ship within the USA unless otherwise noted. ...(March 2nd, 2018)
• 11009-1386 Kawasaki New Oem 1984-85 (26.2% similar) One new 1 oem kawasaki gasket. Satisfaction guaranteed or your money back...(September 26th, 2017)
• 11009-1431 Kawasaki Oem Cylinder Base (33% similar) This is new old stock not in factory package, kawasaki oem cylinder base gasket, research shows it fits: kl 110 A1-2,B1 -'88, klt a1 -'86. Please look at the picture and ask any questions...(May 17th, 2017)
• 11009-1955 Kawasaki Oem Gasket Clutch (33% similar) It comes with free shipping. The part is brand new. I'm selling this oem gasket...(September 30th, 2017)
• 11009-2461 Kawasaki Oem Gasket Exhaust (34.5% similar) The part is brand new. It comes with free shipping. I'm selling this oem gasket...(September 30th, 2017)