Spener Trailers Inc.

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    1241'8" (14900")2158'4" (25900")

    6'9" (81")8'6" (102")

    925018970

    Diamond C  Gooseneck Engineered Beam

    engineered beam
    engineered beam

    Diamond C is forging a new era in flatbed gooseneck and Pintle Hook trailers with the Fleetneck Engineered Beam series. They design, engineer, and optimize our own U.S. Patent Protected ENGINEERED I-BEAMS to fit each Fleetneck model. Fleetnecks are stronger yet lighter, featuring the best strength-to-weight ratios of any steel frame gooseneck trailer on the road – the perfect HOT SHOT TRAILER! Highlighted options include our industry best 12′ Hydraulic Dovetail, 44″ Wide Max Ramps, Air Ride Suspension, Sway Control, Hydraulic Jacks, Blackwood Lumber Flooring, and up to 44′ length and 40K GVWR on select models.

    • Showing 1-15 of 18 items
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    2023 Diamond C LPT207  82″x 16′  14.9k Tandem Axle GooseNeck Dump Trailer Stock#68397

    2023 Diamond C LPT207 82″x 16′ 14.9k Tandem Axle GooseNeck Dump Trailer Stock#68397

    Price: $17,700.00 | For sale in Spencer, IN

    82" Wide 16' Long 2- 7000 lb Axles with EZ Lube Hubs 14900 lb GVWR 2- 12000 lb Drop-Leg Jacks 25k Bu....

    Stock #: 68397

    2023 Diamond C LPT207  82″x 16′  14.9k Tandem Axle GooseNeck Dump Trailer Stock #68482

    2023 Diamond C LPT207 82″x 16′ 14.9k Tandem Axle GooseNeck Dump Trailer Stock #68482

    Price: $17,700.00 | For sale in Spencer, IN

    82" Wide 16' Long 2- 7000 lb Axles with EZ Lube Hubs 14900 lb GVWR 2- 12000 lb Drop-Leg Jacks 25k Bu....

    Stock #: 68482

    2023 Daimond C FMAX 212 HDT  102″x 35′  25.9k Tandem Axle Equipment Trailer Stock #68841

    2023 Daimond C FMAX 212 HDT 102″x 35′ 25.9k Tandem Axle Equipment Trailer Stock #68841

    Price: $41,250.00 | For sale in Spencer, IN

    102" Wide 35' Long (23' + 12' Hydraulic Dovetail) 2- 12000 lb Axles with Oil Bath Hubs HD Adjustable....

    Stock #: 68841

    2023 Diamond C FMAX210 HDT 102″x 32′ Tandem Axle GooseNeck Equipment Trailer Stock #69042

    2023 Diamond C FMAX210 HDT 102″x 32′ Tandem Axle GooseNeck Equipment Trailer Stock #69042

    Price: 26,600.00 | For sale in Spencer, IN

    102" Wide 32' Long (20' + 12' Dovetail with Blackwood Runner and 5 Amp Charger) 2- 10000 lb Axles wi....

    Stock #: 69042

    2023 Diamond C PX212 EBT 102″x 25′  25.9k Tandem Axle Pintle Hitch Equipment Trailer With MAX Ramps Stock #69178

    2023 Diamond C PX212 EBT 102″x 25′ 25.9k Tandem Axle Pintle Hitch Equipment Trailer With MAX Ramps Stock #69178

    Price: $23,700.00 | For sale in Spencer, IN

    102" Wide 25' Long ( 20' + 5' Self-Cleaning Dovetail with MAX Ramps) 2- 12000lb Axles with Oil Bath ....

    Stock #: 69178

    2023 Diamond C FMAX212 HDT 102″ x 32′  25.9k Tandem Axle Gooseneck Equipment Trailer Stock #69170

    2023 Diamond C FMAX212 HDT 102″ x 32′ 25.9k Tandem Axle Gooseneck Equipment Trailer Stock #69170

    Price: $30,500.00 | For sale in Spencer, IN

    102" Wide 32' Long (20' + 12' Dovetail with Blackwood Runner and 5 Amp Charger) 2- 10000 lb Axles wi....

    Stock #: 69170

    2023 FMAX212 HDT  2.0 102″x 32′   25.9k Tandem Axle GooseNeck Equipment Trailer Stock #268799

    2023 FMAX212 HDT 2.0 102″x 32′ 25.9k Tandem Axle GooseNeck Equipment Trailer Stock #268799

    Price: $30,600.00 | For sale in Spencer, IN

    102" Wide 20' + 12' Long (12' Dovetail with Blackwood Runner) 2- 12000 lb Axles with Oil Bath Hubs 2....

    Stock #: 268799

    2022 Diamond C MVC210  82″x 40′  20k  Tandem Axle GooseNeck  Multi-Vehicle Carrier Trailer Stock #59298

    2022 Diamond C MVC210 82″x 40′ 20k Tandem Axle GooseNeck Multi-Vehicle Carrier Trailer Stock #59298

    Price: $28,250.00 | For sale in Spencer, IN

    82" Wide 36' + 4' Long (4' Dovetail) 2-10000 lb Torsion Axles with Oil Bath HD Suspension with 60" S....

    Stock #: 59298

    2023 Diamond C FMAX210 HDT 2.0  102″x 35′  25k Tandem Axle GooseNeck Equipment Trailer Stock #268453

    2023 Diamond C FMAX210 HDT 2.0 102″x 35′ 25k Tandem Axle GooseNeck Equipment Trailer Stock #268453

    Price: 28,750.00 | For sale in Spencer, IN

    102" Wide 23' + 12' Long (12' Dovetail) 2- 10000 lb Axles with Oil Bath Hubs HD Adjustable Hutch Sus....

    Stock #: 268453

    2023 Diamond C FMAX210 2.0 HDT 102″x 30′  25k Tandem Axle GooseNeck Equipment Trailer Stock #268310

    2023 Diamond C FMAX210 2.0 HDT 102″x 30′ 25k Tandem Axle GooseNeck Equipment Trailer Stock #268310

    Price: $26,300 | For sale in Spencer, IN

    102" Wide 18' + 12' Long (12' Dovetail) 2- 10000 lb Axles with Oil Bath Hubs 25000 lb GVWR 2- 12000 ....

    Stock #: 268310

    2023 Diamond C DET208 102″x 24′  18k Tandem Axle GooseNeck Deck-OverTilt Trailer Stock #65667

    2023 Diamond C DET208 102″x 24′ 18k Tandem Axle GooseNeck Deck-OverTilt Trailer Stock #65667

    Price: $18,750.00 | For sale in Spencer, IN

    102" Wide 24' Long 2- 8000 lb Straight Axles with Oil Bath Hubs 18000 lb GVWR 25k Bulldog GooseNeck ....

    Stock #: 65667

    2023 Diamond C FMAX 212 2.0  102″x 32′ 25.9k Tandem Axle Gooseneck Equipment Trailer  With MAX Ramps Stock #268361

    2023 Diamond C FMAX 212 2.0 102″x 32′ 25.9k Tandem Axle Gooseneck Equipment Trailer With MAX Ramps Stock #268361

    Price: $25,200.00 | For sale in Spencer, IN

    102" Wide 27' + 5' Long (5' Self-Cleaning Dovetail with MAX Ramps) 2- 12000 lb Axles with Oil Bath H....

    Stock #: 268361

    2023  Diamond C LPT210  82″x 16′  20k Tandem Axle GooseNeck Dump Trailer Stock #67859

    2023 Diamond C LPT210 82″x 16′ 20k Tandem Axle GooseNeck Dump Trailer Stock #67859

    Price: $29,450.00 | For sale in Spencer, IN

    82" Wide 16' Long 2- 10000 lb Torsion Straight Axles with Oil Bath Hubs 20000 lb GVWR 2- 12000 lb Hy....

    Stock #: 67859

    2023 Diamond C  LPT208  81″x 14′  18k Tandem Axle GooseNeck Dump Trailer Stock #66364

    2023 Diamond C LPT208 81″x 14′ 18k Tandem Axle GooseNeck Dump Trailer Stock #66364

    Price: $20,600.00 | For sale in Spencer, IN

    81" Wide 14' Long 2- 8000 lb Axles with Oil Bath 18000 lb GVWR 12000 lb Drop-Leg Jack 25k Bulldog Go....

    Stock #: 66364

    2023 Diamond C  FMAX212  102″x 40′  25.9k Tandem Axle GooseNeck Flatbed Trailer With MAX Ramps Stock #66416

    2023 Diamond C FMAX212 102″x 40′ 25.9k Tandem Axle GooseNeck Flatbed Trailer With MAX Ramps Stock #66416

    Price: $34,400.00 | For sale in Spencer, IN

    102" Wide 35'+ 5' Long (5' Self-Cleaning Dovetail with MAX Ramps) 2- 12000 lb Axles with Oil Bath 25....

    Stock #: 66416

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