130-3721 Comparison
| photo | price | summary | rating |
|---|---|---|---|
 | $38.00 | Top Pick! Condition is New – Open box, 130-3721 Cummins Onan Radiator Cap Pressure Relief Valve Cooling 130-2760-01 Sys, shipping cost = $7.29 |  |
 | $39.00 | Condition is New – Open box, 130-3721-01 Cummins Onan Radiator Cap Pressure Relief Valve Cooling System Part, shipping cost = $7.29 | |
| photo | price | summary | rating |
|---|---|---|---|
 | $41.91 | Top Pick! Condition is New, CUMMINS CAP 130-3721, FREE SHIPPING | 99.3% |
Introducing the Cummins 130-3721 Radiator Cap, an essential component designed to maintain the cooling system in your heavy-duty vehicle. This radiator cap is engineered specifically for Cummins engines, ensuring a perfect fit and optimal performance.
The cap is constructed from high-quality materials, with a durable, pressure-tested body that can withstand the rigors of commercial use. The cap's design includes a 7 psi pressure rating, which provides adequate pressure to circulate coolant through the engine while preventing coolant from boiling and expanding in the radiator.
The Cummins 130-3721 Radiator Cap features a sturdy, tapered spout that facilitates the smooth flow of coolant between the radiator and the engine. This design also helps to minimize the risk of coolant leakage, contributing to the overall reliability and efficiency of the cooling system.
Additionally, the cap includes a vented pressure relief system that allows excess pressure to escape when necessary. This safety feature ensures that the cooling system remains balanced and free from damage caused by excessive pressure buildup.
In summary, the Cummins 130-3721 Radiator Cap is a crucial component for maintaining the cooling system in your heavy-duty vehicle. Its robust design, 7 psi pressure rating, and vented pressure relief system ensure reliable, efficient, and safe operation. By choosing this high-quality radiator cap, you can help extend the life of your engine and ensure optimal performance for your Cummins-powered vehicle.
The Cummins 130-3721 radiator cap is designed for use in heavy-duty applications where coolant pressure is crucial for engine performance. Here are some pros and cons to help you make an informed decision about purchasing this radiator cap.
Pros:1. Designed for high-pressure applications: This radiator cap is rated for a maximum coolant pressure of 7 psi, making it suitable for heavy-duty engines that require more cooling capacity.
2. Durable construction: The cap is made of high-quality materials, including a brass top and a stainless steel body, ensuring longevity and resistance to corrosion.
3. Easy installation: The radiator cap is a direct replacement for the original equipment on many Cummins engines, making installation a straightforward process for most mechanics.
Cons:1. Higher cost: Compared to standard radiator caps, this high-pressure radiator cap is more expensive, which may be a consideration for some buyers.
2. Limited availability: While this radiator cap is available from various suppliers and retailers, it may not be readily available in all locations, making it necessary to plan ahead and order in advance.
Conclusion:The Cummins 130-3721 radiator cap offers several advantages for heavy-duty engine applications, including its high-pressure rating, durable construction, and easy installation. However, its higher cost and limited availability may be deterrents for some buyers. Ultimately, the decision to purchase this radiator cap depends on your specific needs and budget. If you require the additional cooling capacity and durability offered by this high-pressure radiator cap, then it may be worth the investment. Otherwise, a standard radiator cap may be a more cost-effective option.
Recommendation:If you operate a heavy-duty engine that requires more cooling capacity and durability, then the Cummins 130-3721 radiator cap is a solid choice. However, if you're working with a tight budget or don't need the additional cooling capacity, then a standard radiator cap may be a more practical and cost-effective option. It's essential to carefully evaluate your needs and budget before making a decision.
Details:
Your full-service provider of power products. New Murphy el150k1 liquid level switchback. Cummins radiator cap, 7 psi part# 130-3721 qty: 1 per listing.
specifications slashgenerators:
- brand: Cummins
- mpn: 130-3721
- part type: Cap
- non-domestic product: No
- generator type: Standby
returns slashgenerators:
- policy: returns accepted
- paid by: seller
- time: 30 days
- method: money back
offer slashgenerators:
- best offers: true
- started: september 19, 2025
- in stock #: 3
- availability: in stock
- sold #: 15
- options: ship-to-home
- prices: $38.00–$41.91
- item condition:
- New – Open box
- New
payments slashgenerators:
- wallet: apple-pay
- other
- credit card: mastercard
seller slashgenerators:
- city: evansville, indiana
- rating: 100.0%
- # reviews: 18939
general slashgenerators:
- category: Home & Garden > Yard, Living > Outdoor Power Equipment > Generators
shipping slashgenerators:
- type: calculated
- service: usps first class, usps priority mail, ups next day air, fedex standard overnight
- class: standard, expedited, one-day
- transit: 4-10 days
- carrier: usps, ups, fedex
Related To:
- 123-2015: OIL CAP, Cummins