612THG (Surge Brake Actuator Parts)

612THG – surge brake actuator parts

Use the images and corresponding numbers to find the correct part numbers.

Click on the part number link to view the part on our online store.

Item Part Number Description
1 DEM-8759231 or DEM-8759241 Demco DA91 Surge Actuator – Drum – Zinc Plated – Standard Outer Case – 4 Hole Channel Down (DEM-8759231) – 4 Hole Channel Up (DEM-8759241)
2 DEM-11076-95 or DEM-11077-97 Inner Slide – 4 Hole Channel Down – Zinc Plated (DEM-11076-95) – 4 Hole Channel Up – Primer (DEM-11077-97)
3 DEM-10965 Top Slide Channel
4 DEM-10966 Bottom Slide Channel
5 DEM-10967 Side Spacer Block
6 DEM-SB12426 Damper Shock
7 DEM-05951 Safety Lever
8 DEM-05977 Push Rod Assembly
9 DEM-05679 0.125” Brake Orifice Fitting – 3/8” Thread – Full Flow (Shown on diagram and left photo – Removed from Actuator and threaded into 90° orifice)
10 DEM-03876 Master Cylinder Cap
11 DEM-5650 Master Cylinder Kit – Drum Brakes
12 DEM-05408 Safety Cable – 42” Long
13 DEM-03866-95 Lever Guide
14 DEM-05687 Master Cylinder Boot
15 DEM-10737 90° Brake Orifice (Shown on left photo)
16 BLU-18018-MF 18” Rubber Brake Hose – Male/Female – 3/16” Inverted Flare (Shown on both photos at each connection end)
17 BLU-25X15 Rubber Brake Hose Bracket (Shown on right photo – Welded to frame)
18 BLU-1457 Brake House Retainer Clip (Shown on right photo)
19 BLU-0347-002 Brake Line Kit for Tandem Axle Trailer (Shown on right photo at connection point – Does not show entire kit)
20 DEM-05693-95 Safety Latch
21 DEM-12557 Fill Plate for Master Cylinder
22 BUY-816137 Pintle Eye – 14,000 lb MGTW
23 BUY-B9020 5/8” X 4 1/2” Hitch Bolt Kit – For mounting coupler

Part numbers without a link are not available on our online store. Please contact us at (410) 758-1333 for more information or to order any of these items.

Sunbelt Rentals: All part numbers should be listed in SmartEquip. Please inform us of any part numbers that may be missing.


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