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Dexter Marine Products K99-Z85-20 Model 850 Disc Brake Actuator 8500 lb

Manufacturer

Dexter Marine Products

<p>Since 1960, Dexter has been the leading manufacturer of boat trailer axles, actuators, brakes, and other marine components. With over six decades of engineering excellence, Dexter Marine Products has earned its reputation as the trusted choice for boat trailer owners and OEM manufacturers who demand reliability in the harshest marine environments. Over the past 50 years, OEMs have installed more than 45 million Dexter Axles, a testament to the brand's commitment to quality and innovation.</p><h3>Engineering Excellence for Marine Applications</h3><p>What sets Dexter Marine Products apart is their specialized focus on the unique challenges faced by boat trailers. Unlike standard utility trailers, marine trailers regularly encounter saltwater exposure, frequent submersion, and corrosive conditions that can quickly deteriorate inferior components. Dexter's engineering team designs every product—from torsion axles to hydraulic brake systems—with these demanding conditions in mind, incorporating galvanized finishes, advanced sealing technologies, and corrosion-resistant materials throughout their product line.</p><p>The brand's dedication to innovation extends beyond materials. Their SuperLube lubrication system allows bearing maintenance without hub removal, while their Eliminator torsion axles feature removable spindles that simplify repairs and reduce downtime. These practical engineering solutions reflect Dexter's deep understanding of what trailer owners actually need on the water.</p><h3>Comprehensive Product Range</h3><p>Dexter's <a href="/12891-dexter-marine-products-hubs-200550">hubs</a> represent a critical connection point between axle and wheel, engineered with precision bearing races and galvanized construction to resist the constant moisture exposure that boat trailers endure. Their hub designs incorporate features like EZ-Lube fittings that make routine maintenance straightforward for owners who want to protect their investment.</p><p>The <a href="/12891-dexter-marine-products-brakes-brake-parts-200202">brakes and brake parts</a> lineup includes both drum and disc brake systems specifically calibrated for marine trailer applications. Dexter's Nev-R-Adjust brake technology eliminates the need for manual adjustment, automatically compensating for wear to maintain consistent stopping power throughout the brake's service life—a crucial safety feature when launching or retrieving valuable watercraft.</p><p>For hydraulic braking systems, Dexter's <a href="/12891-dexter-marine-products-brake-actuators-200201">brake actuators</a> provide the mechanical advantage needed to safely control trailer weight during highway travel and boat ramp maneuvers. These surge brake actuators activate proportionally to deceleration forces, delivering smooth, controlled braking without requiring electronic brake controllers.</p><p>Protecting wheel bearings from water intrusion is critical for marine trailers, and Dexter's <a href="/12891-dexter-marine-products-bearing-protectors-seals-bearings-200154">bearing protectors, seals, and bearings</a> create multiple barriers against moisture and contamination. From the comprehensive <a href="/12891-dexter-marine-products-trailer-parts-accessories-201094">trailer parts and accessories</a> catalog, boat owners can find every component needed to maintain, repair, or upgrade their trailer systems with confidence in Dexter's proven durability.</p><h3>American Manufacturing and Distribution</h3><p>American made Dexter products are manufactured in fully automated facilities. Lean, green and clean manufacturing processes increase efficiency, ensure accuracy, recycle waste, and keep costs down. This commitment to domestic production ensures consistent quality control and supports the rigorous testing protocols that have made Dexter the preferred choice for major boat trailer manufacturers nationwide. With the largest distribution network in North America, replacement parts and service support are readily available when and where trailer owners need them most.</p>

Part Number

K99-Z85-20
06/21/2036 6:47 AM
Sale Price

$421.71

2 left at this price

delivery box

Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Dexter Model 850 disc brake surge actuator is designed for boat and utility trailers requiring reliable hydraulic braking performance. This bolt-on actuator features the innovative Drop-N-Go latch mechanism that automatically locks when lowered onto the hitch ball, providing secure coupling and convenient operation.

Key Features:

  • Rated capacity: 8,500 lbs gross trailer weight (GTW)
  • Maximum tongue weight: 850 lbs
  • Drop-N-Go quick lock mechanism automatically secures to hitch ball
  • Fits standard 2-inch trailer hitch balls
  • Bolt-on design mounts to 3-inch wide trailer tongues
  • Disc brake compatible hydraulic master cylinder
  • Built-in dampening shock absorber for smooth braking

This surge brake actuator works automatically by sensing the trailer's forward push against the tow vehicle during deceleration, telescoping together to apply hydraulic pressure to the disc brakes. The system synchronizes trailer braking with the tow vehicle's brakes without requiring electrical connections. Replaces Tie Down Engineering part #70523 and previous Dexter part K99-285-20.

Products specifications

Capacity

8,500 lbs.

Model

800-Disc Brake Ready

Had what I needed in stock and shipped it out quickly. Would have been nice to have the option to ship on my account and get it sooner. Overall good experience and I will come back if I need similar items.

10/10 service.

Super fast and efficient! Thank you!

Good product, arrived in 2 days. I highly recommend.

Yep perfect

I needed an expensive part for my outboard motor's steering system, several of the internet sellers should out of stock/back ordered. Boatplicity showed the item in stock. I went on chat and was told the item was available. I paid the extra $9.99 for 2 day delivery. I ordered the $2000.00 item Wed. May 15 2024 at 1:00 pm. Fed Ex rang my door bell the next day at 11:30 am. I received that item less than 24 hours from the time I placed my order. That is as good as it gets !

Good job!

Quick easy and best prices around!

Easy to use

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