Magnetic Brake Booster Pushrod Adjustment Gauge
Magnetic Brake Booster Pushrod Adjustment Gauge
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Magnetic Brake Booster Pushrod Adjustment Gauge
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FAQ
FAQ
FAQ – Frequently Asked Questions
1.When will my order ship?
Most orders are processed within 1–2 business days.
2.How long is delivery?
Standard U.S. delivery usually takes 5–12 business days. International orders may take longer.
3.How do I track my order?
Once your order ships, you will receive an email with a tracking number.
4.Can I change or cancel my order?
Orders can only be changed or canceled before they are shipped. Contact us as soon as possible if you need assistance.
5.What payment methods do you accept?
We accept major credit/debit cards, PayPal, Shop Pay, Apple Pay, and other secure checkout options (depending on availability).
6.What if the item arrived damaged?
Please email us with a photo of the damaged item within 48 hours, and we will arrange a replacement or refund.
7.What if the package is lost?
If your package is marked “delivered” but you didn’t receive it, contact us and we will help investigate with the carrier.
8.Do you ship internationally?
Yes, we ship to most countries. Shipping times vary based on destination.
Stop Guessing Brake Booster Pushrod Length.
When a master cylinder and brake booster have to work together, small dimensional differences matter. This magnetic adjustment gauge helps capture the master cylinder piston-bore depth and transfer that reference to the booster pushrod for comparison and adjustment.
Too Long or Too Short — Either Way, Guessing the Pushrod Isn't the Plan.
When replacing or matching a brake booster and master cylinder, pushrod position needs to be checked against the master cylinder piston depth. Trying to judge that relationship by eye can turn a straightforward installation into repeated removal, adjustment and reinstallation.
The relevant surfaces sit inside two separate components, making direct comparison awkward.
Install, check, remove and adjust again can waste time during the job.
Pushrod setup should be checked against the applicable vehicle or component service specification.
Capture the Master Cylinder Depth Without Trying to Hold a Caliper in the Bore.
Place the side marked “Master Cylinder” against the master cylinder mounting surface. Slide the center measuring pin until the rounded end reaches the bottom of the piston bore, then lock the setting with the knurled thumb screw. The tool now carries that dimensional reference.
Position the master-cylinder side squarely against the mounting surface.
Move the rounded measuring pin until it reaches the piston-bore reference point.
Tighten the center knob so the reference position stays fixed during transfer.
N48 Magnetic Ends Help Hold the Gauge Against Compatible Metal Surfaces.
Magnetic inserts are built into the tool ends to help keep the gauge seated on compatible ferrous mounting surfaces. That can free up a hand while you set the center pin or compare the booster pushrod position.
The supplied product information specifies upgraded N48 magnetic cores.
Helps hold the body against compatible metal surfaces during measurement.
Less need to constantly support the gauge body while moving the center pin.
The Knurled Locking Knob Holds Your Reference Measurement.
Once the center rod is positioned, the thumb screw locks it in place. You can then move the gauge from the master cylinder to the brake booster without intentionally resetting the measured reference.
Slides through the gauge body to capture the required depth reference.
Easy to grip when locking the rod position by hand.
Keep the reference while moving from one component to the other.
CNC Aluminum Body with a 304 Stainless Steel Measuring Rod.
The supplied specifications describe an anodized aluminum-alloy body paired with a stainless-steel center rod. The compact gauge is designed to live in a mechanic's toolbox without taking up the space of a large specialty fixture.
Lightweight metal construction with an anodized-style finish.
Supplied information specifies 304 stainless steel for the measuring rod.
Approximately 3.42 inches wide according to the supplied dimension image.
Master Cylinder → Gauge → Booster Pushrod → Verify.
Use the gauge as a measurement-transfer aid. Final pushrod clearance must follow the applicable service information for the vehicle, master cylinder and brake booster being serviced.
Place the end marked “Master Cylinder” against the mounting surface.
Slide the rounded pin to the piston-bore reference point without intentionally depressing the piston, then lock it.
Place the corresponding side against the brake booster while keeping the measurement fixed.
Compare the booster pushrod position with the captured reference and adjust only to the required service specification.
A Specialty Gauge for Brake Booster & Master Cylinder Setup.

Useful when verifying the dimensional relationship before final assembly.
Helps compare an adjustable booster pushrod to the mating master cylinder.
Practical for compatible older vehicles, custom setups and brake-system service work.
Much Easier Than Trying to Compare Two Hidden Measurements by Eye.
“I was replacing a booster and master cylinder and didn't want to keep pulling everything apart just to sneak up on the pushrod adjustment. This let me capture the master cylinder depth, lock it, and carry the same reference over to the booster.”
“The magnets are the part I didn't realize I would appreciate so much. Instead of holding the gauge, moving the center pin and trying to keep everything square at the same time, it stays much easier to control on compatible steel surfaces.”
“Simple specialty tool, but it solves a very specific problem. I still used the vehicle service spec for the final clearance, but this made transferring the measurement between the two components much cleaner.”
Measure the Relationship Before You Bolt the Two Components Together.
Seat the gauge on the master cylinder. Set the rounded measuring pin. Lock the reference. Move to the booster. Instead of estimating two hidden dimensions, carry one physical measurement from one component directly to the other.