V-TWIN MANUFACTURING 40-0674 Oil Tank Dipstick Temperature Dipstick/temperature 84-99FXST/86-99 FLST/79-03

( Brand: V-twin Manufacturing ), ( Manufacturer Part Number: 40-0674 ), ( Part Type: Oil Dipstick Tank ), ( Frame Type: Softail ), ( Material: Chrome )

Review V TWIN MANUFACTURING Harley Chrome Oil Tank Dipstick/temperature Guage 84-99fxst/86-99 Flst/79-03 Xl fits FLST

The **V-Twin 40-0674 Harley-Davidson Oil Tank Dipstick/Temperature Gauge** is a meticulously crafted, high-performance component designed exclusively for select Harley-Davidson models, including the **1984 1999 FXST, 1986 1999 FLST, and 1979 2003 XL series**, ensuring seamless compatibility with these iconic V-twin engines. Engineered to perfection, this dipstick/temperature gauge assembly combines functionality with durability, providing riders with real-time insights into their engine s oil level and temperature critical factors for maintaining optimal performance, longevity, and reliability. The gauge itself features a robust, easy-to-read analog dial with a sleek, chrome-plated finish, offering clear, precise measurements that help prevent overheating and oil starvation, common issues that can lead to costly engine damage. The accompanying dipstick, designed to fit snugly into the oil tank s filler neck, is constructed from high-quality materials resistant to warping or corrosion, ensuring accurate readings even after prolonged use. Its ergonomic design allows for effortless insertion and removal, while the integrated temperature sensor provides immediate feedback on engine health, helping riders make informed decisions during rides. Whether cruising on open highways or navigating tight city streets, this dipstick/temperature gauge serves as an essential diagnostic tool, empowering riders to monitor their engine s condition with confidence. Backed by V-Twin s reputation for authenticity and precision, this part is a must-have upgrade for enthusiasts seeking to enhance their Harley s functionality while preserving its classic charm.

### **Pros and Cons of buying a V-Twin 40-0674 Harley Oil Tank Dipstick/Temperature Gauge (79-03 XL, 84-99 FXST, 86-99 FLST)**

1. **Direct Replacement Part** This is an OEM (original equipment manufacturer) or high-quality aftermarket part designed to fit the specified Harley-Davidson models exactly, ensuring a proper fit and function without modifications.

2. **Reliable Performance** Harley-Davidson engines rely on accurate oil level and temperature readings for longevity. A properly functioning dipstick and temperature gauge help prevent engine damage from low oil or overheating.

3. **Easy Installation** The part is designed for straightforward replacement, typically requiring only basic tools and minimal mechanical knowledge. Most riders can install it themselves with little effort.

4. **Compatibility with Vintage Models** Since this part covers a wide range of Harley-Davidson models from the late '70s to early 2000s, it is a cost-effective solution for owners of classic or older bikes.

5. **Prevents Costly Engine Damage** A faulty dipstick or temperature gauge can fail silently, leading to undetected oil starvation or overheating both of which can cause severe engine damage. Replacing it ensures early detection of issues.

6. **Maintenance Convenience** A functional dipstick makes routine oil checks quick and reliable, while an accurate temperature gauge helps monitor engine health during rides.

7. **Aftermarket Quality Options** While not OEM, many reputable aftermarket brands (such as those made by Harley-approved suppliers) offer durable, well-built alternatives that match or exceed OEM standards.

1. **Potential for Counterfeit Parts** If purchasing from an untrusted seller (especially online marketplaces), there is a risk of receiving a counterfeit or low-quality replica that may not function correctly or could fail prematurely.

2. **Age-Related Wear** If the original part was already worn or damaged before purchase, the new replacement may not last as long as expected, especially if the bike has high mileage.

3. **Compatibility Confusion** While the part covers multiple models, there may be subtle differences in mounting or wiring between specific years or engine variants. Double-checking the model and year is crucial to avoid mismatches.

4. **Cost Relative to Newer Bikes** For modern Harley-Davidson models, this part may seem expensive compared to newer bikes, but it remains a reasonable price for classic or used bikes where original parts are harder to find.

5. **DIY Installation Risks** While simple, improper installation (e.g., cross-threading the dipstick or incorrect wiring) could lead to leaks or electrical issues. Those uncomfortable with basic mechanical work may prefer professional installation.

6. **Limited Longevity on High-Mileage Engines** If the bike has extensive mileage or has been neglected, the surrounding components (e.g., oil tank seals, wiring harness) may degrade over time, potentially causing the new part to fail sooner if not addressed holistically.

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The **V-Twin 40-0674 Harley oil tank dipstick/temperature gauge** is a **highly practical and necessary replacement part** for the specified Harley-Davidson models. Its benefits direct compatibility, reliability, ease of installation, and prevention of engine damage far outweigh the minor drawbacks, which are largely avoidable with proper sourcing and installation.

For most riders, this part is a **wise investment** in maintaining their bike s health, especially for those who prioritize functionality and longevity. The key is to **purchase from a reputable seller** (preferably a Harley dealership or trusted aftermarket supplier) and ensure the part matches the exact model and year of the bike.

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- **Buy from a trusted source** (e.g., official Harley-Davidson dealers, reputable aftermarket suppliers like **Harley-Davidson Parts, Cycle Planet, or eBay verified sellers**).

- **Verify model compatibility** before purchasing to avoid mismatches.

- **Inspect surrounding components** (oil tank seals, wiring) during installation to prevent future issues.

- **Consider professional installation** if unsure about DIY repairs to avoid mistakes.

- **Pair with high-quality oil and filters** for optimal engine protection.

**Final Verdict:** This is a **strong, cost-effective upgrade** for the listed Harley-Davidson models, and the pros significantly outweigh the cons for the average rider.

Details:

By V-Twin.It fits 84-99 FXST/86-99 FLST and 79-03 XL.It. Replaces OEM # 62668-87T. Please feel free to ask questions prior buying. Added to the purchase price with shipping calculator.

Gauge for Harley's.This dipstick is Chrome plated and made. Brand New Aftermarket Oil tank Dipstick and temperature.

part #: 400674 prices

• $22.09-$45.95

specifications mocycfra:

• for models: Flst
• for makes: Harley
• brand: V-twin Manufacturing
• mpn: 40-0674
• part type: Oil Dipstick Tank
• frame type: Softail
• material: Chrome

seller mocycfra:

• city: Fonda, New York
• rating: 100.0%
• # reviews: 7418

payments mocycfra:

• other
• credit card: Discover
• wallet: Paypal

offer mocycfra:

• sold: 0
• availability: In Stock
• quantity: 2
• started: May 18, 2026
• options: Ship-to-home

shipping mocycfra:

• transit: 3-10 Days
• carrier: USPS
• class: Expedited
• type: Calculated
• cost: $16.50
• service: USPS Priority Mail

returns mocycfra:

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

general mocycfra:

• condition: New
• Motorcycle Scooter Parts Accessories > Body Frame > Frames Parts

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