Name: 20’/40′ Combo Tridem
Rating: 4.9 (25 reviews)

20’/40′ Combo Tridem

Overall Length: 31’-7” (retracted) or 40’-11” (extended)
Overall Width: 96”
Fifth Wheel Height: 47 ± 1”
Rear Deck Height: 48 ± 1”
Kingpin Location: 18” (From the rear of the front bolster)
Landing Gear Location: 100” (From the kingpin center)
Tandem location: 26.5” (From rear face of rear bolster to rear axles center when extended)
Axle Spread: 61” + 61”
Tare Weight: 10,900 lbs ± 3%
Payload: 66,100 lbs for 20’ loaded or 74,100 lbs for 40’ loaded

Specifications
Warranty Policy

Main beam	16″x5” fabricated I-beam with high strength flanges and 6-11/32” height for gooseneck rail. ASTM Grade 130.
Upper coupler	5/16” pick up plate with 2” diameter square type kingpin per SAE standard, 380-420 HB, with 2” water drain holes, design to be integrated with main frame through welding.
Front Bolster	Fabricated bolster assembly with high strength plates with 89” centers, equipped with none retractable twist locks.
Intermediate Bolster	Fabricated with retractable twistlocks with swing down twistlocks.
Rear Bolster	Tapered rectangle bolster of the main frame fabricated by 3/8” thick top and bottom plate with 5/16” thick side plates. 6-5/8” height x 4” wide fabricated box beam bolster on slider composed by1/2” thick top/bottom plates with 5/16” thick side plates with flip up twistlocks.
Slider beam	Fabricated I beam with 3/4″x5” upper and lower flanges and 3/16” web, slider extends or retract on 6” diameter steel rollers.
Locking system	Air operated locking pins, activated by Goldseal 30/30 spring brakes on both sides of the trailer through third gladhand on front sill.
Landing Gear	65,000 lbs capacity, 2-speed 17” travel with low “T” shoes. Crank handle is located on the driver’s side of the chassis. Landing gear brackets are bolted on the main beam as the layout.
Container locks	Provided
Suspension	61″ tri-axle, underslung configuration with high-arch single spring (360-00).
Axles	5” round axles with 22,500lb capacity; 71.5” track; 16.5”X7” 4515Q brake. Dust shields are provided. 1.5-28 spline, 5.5” automatic slack adjusters. Reserved PSI interface; Heat Sensing Labels. Axle Installation orientation 90 degrees REAR, chambers DOWN (2 abs ready front, 1 non abs rear per unit).
Wheel end	Hub & Drum Assembly. 340-4370 solid Aluminum Grease hub cap. Seals P/N Scotseal plus XL 46300. Bearings. Spindle nut Double Nut.
Lubricant	Synthetic Semi-fluid grease lubricant.
Wheels	22.5 x 8.25 10-stud hub-piloted wheels with 5 hand holes and with TR572 valve stem.
Tires	255/70R22.5-16PR tubeless type.
Brake System	110800 spring brake priority valve system and 4S/2M ABS system. Glad hand 12-0061 and 12-0081. 3/8” blue air tube for control and 3/8” red for supply. Goldseal T30/30, 2.5” stroke brake chamber. THACO CMC (Vietnam) air tanks.
Electrical	Mold seal wiring harness, Reserved PSI and GPS connector. LED lights (amp connections for S/T/T lights and .180 bullets for others). The theft proof design used for 4” LED lighting.
Electrical Receptacle	16-724 plastic material with split pins.
Document Holder	THACO Plastic Components (Vietnam). Installed on roadside near crank handle.
Conspicuity tape	Installed per federal regulations.
Painting	Abrasive blast of all metal surfaces – not less than SA-2.5 to achieve clean bare steel. Surface will be coated with electrophoresis primer and powder topcoat. Total thickness not less than 80μm after dry membrane. Coating supplier PPG (Vietnam).
Marking	Customer configuration (includes Decal, layout, VIN, nameplate).
Hubodometer	NONE
Tire Inflation System	PSI (USA) Tire Inflation System with THERMalert.
Mud flaps	THACO Plastic Components (Vietnam) 18”x24”x1/4” white PVC mud flaps with “CUSTOMER” logo.

No.	Part Name	Manufacturers Name	Time	Warranty Information
1	Frame	Thaco Trailers	5 Years	THACO INDUSTRIES TRAILERS AND HEAVY STEEL STRUCTURES MANUFACTURING LIMITED LIABILITY COMPANY Add : Chu Lai IZ., Nui Thanh Town, Quang Nam province, Vietnam Office: (+84) 2353.565.327 Website: https://thacotrailers.com/
2	Paint(ED + Top coat)	PPG	Painting: 7 Years