Description

Speedometer Recalibrator – Signal Interface – Universal – Each

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

About CLASSIC INSTRUMENTS

A winner of multiple industry awards, Classic Instruments produces a wide range of replacement and custom instruments and gauges for a variety of classic and performance applications. Classic Instruments is renowned in the street rod community for their beautiful, hand-crafted work, available in complete packages or as individual gauges, as well as sending units and accessories.

Reviews

There are no reviews yet.

Be the first to review “CLASSIC INSTRUMENTS Speedometer/Tach Calibrator SN74Z”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    STILO Visor ST6 Blue Dark YA0911

    SKU: STIYA0911
    Product information
    • Weight0.385 lbs
    • Dimensions11.1 × 7.55 × 6.05 in
    • Brand

    • Manufacturer Part Number

      YA0911

    • Type

    Details...
    Original price was: $226.00.Current price is: $204.95.Add to cart
    Original price was: $226.00.Current price is: $204.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Magnet Stud Assembly for Crank Trigger Wheel ASY10001

    SKU: MSDASY10001
    Product information
    Details...
    Original price was: $6.75.Current price is: $6.14.Add to cart
    Original price was: $6.75.Current price is: $6.14.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Billet Timing Pointer SBC w/8.0 Balancer 89884

    SKU: MSD89884
    Product information
    • Weight0.335 lbs
    • Dimensions5.85 × 4.4 × 3.45 in
    • Material

      Aluminum

    • Color

      Black

    • Finish

      Anodized

    • Quantity

      Each

    • Style

      Pointer

    Details...
    Original price was: $74.00.Current price is: $66.55.Add to cart
    Original price was: $74.00.Current price is: $66.55.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    QA1 Pro-Coil Front Shock Kit GM GS401-10400A

    SKU: QA1GS401-10400A
    Product information
    • Weight20.83 lbs
    • Dimensions21 × 10 × 8 in
    • Product Line

      Pro-Coil

    • Internal Design

      Twintube

    • Gas/Hydraulic

      Hydraulic

    • Threaded Body

      Yes

    • Compressed Length

      9 in

    Details...
    Original price was: $825.00.Current price is: $749.95.Add to cart
    Original price was: $825.00.Current price is: $749.95.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MARCH PERFORMANCE Sanden Style Chrome AC Compressor P412

    SKU: MPPP412
    Product information
    • Weight11.35 lbs
    • Dimensions8.1 × 7.4 × 7.3 in
    • Quantity

      Each

    • Pulley Included

      Yes

    • Compressor Type

      Sanden 7176

    • Refrigerant Type

      R134-A

    • Compressor Clutch Included

      Yes

    Details...
    Original price was: $460.77.Current price is: $418.88.Add to cart
    Original price was: $460.77.Current price is: $418.88.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    QUICK TIME 15mm Offset Dowel Pins 2pk .021 Offset RM-162

    SKU: QTMRM-162
    Product information
    • Weight0.045 lbs
    • Dimensions5.15 × 3.65 × 0.6 in
    • Intended Location

      Bellhousing

    • Outside Diameter (Mm)

      15 mm

    • Solid / Hollow / Split

      Hollow

    • Offset

      Yes

    • Offset Amount

      0.021 in

    Details...
    Original price was: $39.00.Current price is: $34.98.Add to cart
    Original price was: $39.00.Current price is: $34.98.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MILODON BBC S/S Engine Dipstick – Marine 22012

    SKU: MIL22012
    Product information
    • Weight1.05 lbs
    • Dimensions29.25 × 5.75 × 1.5 in
    • Quantity

      Each

    • Mount Location

      Oil Pan

    • Flexible / Solid

      Flexible

    • Tube Material

      Braided Stainless

    • Tube Color

      Natural

    Details...
    Original price was: $149.44.Current price is: $129.95.Add to cart
    Original price was: $149.44.Current price is: $129.95.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HUSKY LINERS Rear Mud Guards Custom Mud Guards 59221

    SKU: HSK59221
    Product information
    • Weight2.13 lbs
    • Dimensions19.1 × 12.8 × 3.5 in
    • Product Line

      Mud Guards

    • Application Specific

      Yes

    • Front / Rear

      Rear

    • Drilling Required

      Yes

    • Hardware Included

      Yes

    Details...
    Original price was: $66.00.Current price is: $59.99.Add to cart
    Original price was: $66.00.Current price is: $59.99.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOWE Pitman Arm Pwr Steering 2349

    SKU: HOW2349
    Product information
    • Weight1.54 lbs
    • Dimensions6.95 × 2.25 × 1.1 in
    • Quantity

      Each

    • Material

      Steel

    • Color

      Black

    • Finish

      Natural

    • Overall Length

      6-11/16 in

    Details...
    Original price was: $102.70.Current price is: $93.36.Add to cart
    Original price was: $102.70.Current price is: $93.36.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WILLYS CARB 604 Crate Engine Carb WCD50127

    SKU: WCD50127
    Product information
    • Weight13.25 lbs
    • Dimensions12.9 × 11 × 8.9 in
    • Quantity

      Each

    • Cfm

      750 CFM

    • Fuel Type

      Gasoline

    • Fuel Inlets

      Dual

    • Mounting Flange Style

      Square Bore

    Details...
    Original price was: $1,381.05.Current price is: $1,255.50.Add to cart
    Original price was: $1,381.05.Current price is: $1,255.50.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist

    80