- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Switches & Relays /
- Relays /
- Accessory Power /
- Zettler (Pack of 3) 12V 30A Relay for Ram Tra...
0 ratings
Item #:
37018078
Zettler (Pack of 3) 12V 30A Relay for Ram Trailer Tow Lights, Replaces VFM-21F42-S01
90% of respondents would recommend this to a friend
Item #:
37018078
TOP 89
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Saturday, October 10
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
This relay replaces the commonly faulty VFM-21F42-S01 trailer light relays in Ram pickup truck fuse box assemblies, includes 3 relays, and is rated at 30A 12VDC with 5 operating terminals.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Current Rating
The 12V 30A rating ensures reliable performance for towing applications, handling heavy loads while ensuring safety and stability in electrical connections.
Durable Design
Engineered for rugged environments, these relays are built to withstand the demands of trailer towing, providing long-lasting reliability and peace of mind.
Easy Replacement
Compatible with VFM-21F42-S01, this relay pack offers a straightforward replacement option, saving time on installation and enhancing overall user convenience.
Product Details
| Connector Type | Screw |
| Contact Type | Normally Open |
| Current Rating | 30 A |
| Mounting Type | DIN Rail Mount |
| Operation Mode | Automatic |
| Coil Voltage | 12 volts |
| Contact Current Rating | 30 A |
| Maximum Switching Current | 30 A |
| Minimum Switching Voltage | 12 volts_of_direct_current |
| Upper Temperature Rating | 125 u00b0C |
| Contact Material | Copper |
| Brand Name | Zettler |
| Number of Packs | 3 |
| Unit Count | 3 Count |
| Number of Items | 3 |
| Manufacturer | Zettler |
| Model | (Pack of 3) 12V 30A |
| Part Number | (Pack of 3) 12V 30A |
| Item Weight | 0.6 lbs (270 grams) |
Who Should Buy?
-
Trailer Owners
Perfect for users who need reliable relays for operating trailer tow lights safely and efficiently.
-
DIY Enthusiasts
Ideal for hobbyists looking to upgrade or replace existing relays in their own vehicle or trailer setups.
-
Automotive Technicians
Suitable for professionals needing quality relays for repair work on towing systems or trailer lighting.
-
High-Powered Applications
Not suitable for vehicles or systems requiring more than 30A as it may result in overheating.
Product Description
Zettler (Pack of 3) 12V 30A Relay for Ram Trailer Tow Lights, Replaces VFM-21F42-S01
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Does this relay come with free shipping?
Answer: Yes, free shipping is included. -
Question:
What is the maximum contact current of this relay?
Answer: It is rated at a maximum of 30A at 12VDC. -
Question:
What is the operating temperature range of this relay?
Answer: The operating temperature range is -40°C to +125°C.
Zettler Accessory Power Editorial Review
The 12V 30A Relay for Ram Trailer Tow Lights is receiving positive feedback from customers. One user mentioned that their Dodge vehicle didn't require the replacement, but they installed the product as a precaution since they use their truck for towing. Another customer expressed initial apprehension but was impressed with the product's performance, describing it as a great price and effective. Overall, the product is seen as reliable and essential for those using their trucks for towing.
Customer Reviews & Ratings
1 customers ratings
-
5 Star
0%
-
4 Star
100%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Reliable for towing vehicles
- Great price
- Effective performance
Cons
- No negative feedback provided
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
TOP 89
Order now and get it around Saturday, October 10
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Replaces faulty VFM-21F42-S01 trailer light relays in Ram pickup truck fuse box assemblies.
- Includes 3 relays in new bulk packaging.
- Rated at 30A 12VDC with 5 operating terminals.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.