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Monitor your automatic transmission's health with the AutoMeter Spek-Pro Transmission Temperature Gauge, part number atmP34221. This precision instrument provides real-time, highly accurate temperature readings of your transmission fluid, which is critical for maintaining optimal transmission lifespan and performance. Whether you're towing heavy loads or pushing a boosted motor, understanding your transmission temperature helps prevent overheating and potential damage. The gauge features a 2-1/16 inch dial with a wide-angle design for enhanced visibility, ensuring you can easily monitor your transmission fluid temperature during high-stress driving conditions. Included with the gauge is an advanced 1/8" NPT temperature transducer and a direct plug-in wiring harness, simplifying installation for both novice and experienced users. For additional customization and ease, an optional trans cooler line manifold is available.
The AutoMeter Spek-Pro gauge offers seven user-selectable background illumination colors—red, blue, green, white, yellow, orange, and violet—with adjustable brightness settings. Independent dimming controls for the dial and pointer allow for clear visibility during day or night driving. The gauge also features a peak recall function that stores the highest recorded temperature, enabling easy review of transmission stress over time. The precision brushless stepper motor provides smooth, quiet, and accurate pointer movement across a 280-degree range, offering superior dial resolution.
Additional advanced features include a Pro-Control output capable of activating relays for warning lights, fans, or pumps, and configurable high and low warning thresholds using dedicated on-instrument face buttons. The patented lightweight spin-on bracket and pre-wired harness facilitate straightforward installation, while the large viewable dial ensures easy readability at a glance. Engineered with solid-state, data acquisition-grade sensors, this gauge withstands the harshest environments, providing reliable performance and long-term durability. Whether for daily driving, performance tuning, or racing applications, the AutoMeter Spek-Pro Transmission Temperature Gauge delivers precise, customizable monitoring to keep your transmission operating at peak efficiency.
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Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
